diff --git a/Library/Homebrew/cmd/linkapps.rb b/Library/Homebrew/cmd/linkapps.rb
deleted file mode 100644
index 1bec67a047..0000000000
--- a/Library/Homebrew/cmd/linkapps.rb
+++ /dev/null
@@ -1,67 +0,0 @@
-#: @hide_from_man_page
-#:  * `linkapps` [`--local`] [<formulae>]:
-#:    Find installed formulae that provide `.app`-style macOS apps and symlink them
-#:    into `/Applications`, allowing for easier access (deprecated).
-#:
-#:    Unfortunately `brew linkapps` cannot behave nicely with e.g. Spotlight using
-#:    either aliases or symlinks and Homebrew formulae do not build "proper" `.app`
-#:    bundles that can be relocated. Instead, please consider using `brew cask` and
-#:    migrate formulae using `.app`s to casks.
-
-require "keg"
-require "formula"
-
-module Homebrew
-  module_function
-
-  def linkapps
-    odeprecated "'brew linkapps'"
-
-    target_dir = linkapps_target(local: ARGV.include?("--local"))
-
-    unless target_dir.directory?
-      opoo "#{target_dir} does not exist, stopping."
-      puts "Run `mkdir #{target_dir}` first."
-      exit 1
-    end
-
-    if ARGV.named.empty?
-      kegs = Formula.racks.map do |rack|
-        keg = rack.subdirs.map { |d| Keg.new(d) }
-        next if keg.empty?
-        keg.detect(&:linked?) || keg.max_by(&:version)
-      end
-    else
-      kegs = ARGV.kegs
-    end
-
-    link_count = 0
-    kegs.each do |keg|
-      keg.apps.each do |app|
-        puts "Linking: #{app}"
-        target_app = target_dir/app.basename
-
-        if target_app.exist? && !target_app.symlink?
-          onoe "#{target_app} already exists, skipping."
-          next
-        end
-
-        # We prefer system `ln` over `FileUtils.ln_sf` because the latter seems
-        # to have weird failure conditions (that were observed in the past).
-        system "ln", "-sf", app, target_dir
-        link_count += 1
-      end
-    end
-
-    if link_count.zero?
-      puts "No apps linked to #{target_dir}" if ARGV.verbose?
-    else
-      puts "Linked #{Formatter.pluralize(link_count, "app")} to #{target_dir}"
-    end
-  end
-
-  def linkapps_target(opts = {})
-    local = opts.fetch(:local, false)
-    Pathname.new(local ? "~/Applications" : "/Applications").expand_path
-  end
-end
diff --git a/Library/Homebrew/cmd/prune.rb b/Library/Homebrew/cmd/prune.rb
index 7ec2838bae..3270066131 100644
--- a/Library/Homebrew/cmd/prune.rb
+++ b/Library/Homebrew/cmd/prune.rb
@@ -1,15 +1,12 @@
 #:  * `prune` [`--dry-run`]:
 #:    Remove dead symlinks from the Homebrew prefix. This is generally not
-#:    needed, but can be useful when doing DIY installations. Also remove broken
-#:    app symlinks from `/Applications` and `~/Applications` that were previously
-#:    created by `brew linkapps`.
+#:    needed, but can be useful when doing DIY installations.
 #:
 #:    If `--dry-run` or `-n` is passed, show what would be removed, but do not
 #:    actually remove anything.
 
 require "keg"
 require "cmd/tap"
-require "cmd/unlinkapps"
 
 module Homebrew
   module_function
@@ -49,17 +46,15 @@ module Homebrew
       end
     end
 
-    unless ARGV.dry_run?
-      if ObserverPathnameExtension.total.zero?
-        puts "Nothing pruned" if ARGV.verbose?
-      else
-        n, d = ObserverPathnameExtension.counts
-        print "Pruned #{n} symbolic links "
-        print "and #{d} directories " if d.positive?
-        puts "from #{HOMEBREW_PREFIX}"
-      end
-    end
+    return if ARGV.dry_run?
 
-    unlinkapps_prune(dry_run: ARGV.dry_run?, quiet: true)
+    if ObserverPathnameExtension.total.zero?
+      puts "Nothing pruned" if ARGV.verbose?
+    else
+      n, d = ObserverPathnameExtension.counts
+      print "Pruned #{n} symbolic links "
+      print "and #{d} directories " if d.positive?
+      puts "from #{HOMEBREW_PREFIX}"
+    end
   end
 end
diff --git a/Library/Homebrew/cmd/unlinkapps.rb b/Library/Homebrew/cmd/unlinkapps.rb
deleted file mode 100644
index 721e4d6390..0000000000
--- a/Library/Homebrew/cmd/unlinkapps.rb
+++ /dev/null
@@ -1,79 +0,0 @@
-#: @hide_from_man_page
-#:  * `unlinkapps` [`--local`] [`--dry-run`] [<formulae>]:
-#:    Remove symlinks created by `brew linkapps` from `/Applications` (deprecated).
-#:
-#:    Unfortunately `brew linkapps` cannot behave nicely with e.g. Spotlight using
-#:    either aliases or symlinks and Homebrew formulae do not build "proper" `.app`
-#:    bundles that can be relocated. Instead, please consider using `brew cask` and
-#:    migrate formulae using `.app`s to casks.
-
-require "cmd/linkapps"
-
-module Homebrew
-  module_function
-
-  def unlinkapps
-    odeprecated "'brew unlinkapps'"
-
-    target_dir = linkapps_target(local: ARGV.include?("--local"))
-
-    unlinkapps_from_dir(target_dir, dry_run: ARGV.dry_run?)
-  end
-
-  def unlinkapps_prune(opts = {})
-    opts = opts.merge(prune: true)
-    unlinkapps_from_dir(linkapps_target(local: false), opts)
-    unlinkapps_from_dir(linkapps_target(local: true), opts)
-  end
-
-  def unlinkapps_from_dir(target_dir, opts = {})
-    return unless target_dir.directory?
-    dry_run = opts.fetch(:dry_run, false)
-    quiet = opts.fetch(:quiet, false)
-
-    apps = Pathname.glob("#{target_dir}/*.app").select do |app|
-      unlinkapps_unlink?(app, opts)
-    end
-
-    ObserverPathnameExtension.reset_counts!
-
-    app_kind = opts.fetch(:prune, false) ? " (broken link)" : ""
-    apps.each do |app|
-      app.extend(ObserverPathnameExtension)
-      if dry_run
-        puts "Would unlink#{app_kind}: #{app}"
-      else
-        puts "Unlinking#{app_kind}: #{app}" unless quiet
-        app.unlink
-      end
-    end
-
-    return if dry_run
-
-    if ObserverPathnameExtension.total.zero?
-      puts "No apps unlinked from #{target_dir}" if ARGV.verbose?
-    else
-      n = ObserverPathnameExtension.total
-      puts "Unlinked #{Formatter.pluralize(n, "app")} from #{target_dir}"
-    end
-  end
-
-  UNLINKAPPS_PREFIXES = %W[
-    #{HOMEBREW_CELLAR}/
-    #{HOMEBREW_PREFIX}/opt/
-  ].freeze
-
-  def unlinkapps_unlink?(target_app, opts = {})
-    # Skip non-symlinks and symlinks that don't point into the Homebrew prefix.
-    app = target_app.readlink.to_s if target_app.symlink?
-    return false unless app&.start_with?(*UNLINKAPPS_PREFIXES)
-
-    if opts.fetch(:prune, false)
-      !File.exist?(app) # Remove only broken symlinks in prune mode.
-    elsif ARGV.named.empty?
-      true
-    else
-      ARGV.kegs.any? { |keg| app.start_with?("#{keg}/", "#{keg.opt_record}/") }
-    end
-  end
-end
diff --git a/Library/Homebrew/cmd/upgrade.rb b/Library/Homebrew/cmd/upgrade.rb
index 03cd508db2..340037a2ba 100644
--- a/Library/Homebrew/cmd/upgrade.rb
+++ b/Library/Homebrew/cmd/upgrade.rb
@@ -29,7 +29,7 @@ module Homebrew
 
     Homebrew.perform_preinstall_checks
 
-    odeprecated "'brew upgrade --all'", "'brew upgrade'" if ARGV.include?("--all")
+    odisabled "'brew upgrade --all'", "'brew upgrade'" if ARGV.include?("--all")
 
     if ARGV.named.empty?
       outdated = Formula.installed.select do |f|
diff --git a/Library/Homebrew/cmd/uses.rb b/Library/Homebrew/cmd/uses.rb
index 98ecca0f5d..bfc81f040a 100644
--- a/Library/Homebrew/cmd/uses.rb
+++ b/Library/Homebrew/cmd/uses.rb
@@ -54,48 +54,19 @@ module Homebrew
       used_formulae.all? do |ff|
         begin
           deps = f.runtime_dependencies if only_installed_arg
-          if recursive
-            deps ||= recursive_includes(Dependency, f, includes, ignores)
-
-            dep_formulae = deps.flat_map do |dep|
-              begin
-                dep.to_formula
-              rescue
-                []
-              end
-            end
-
-            reqs_by_formula = ([f] + dep_formulae).flat_map do |formula|
-              formula.requirements.map { |req| [formula, req] }
-            end
-
-            reqs_by_formula.reject! do |dependent, req|
-              if req.recommended?
-                ignores.include?("recommended?") || dependent.build.without?(req)
-              elsif req.test?
-                !includes.include?("test?")
-              elsif req.optional?
-                !includes.include?("optional?") && !dependent.build.with?(req)
-              elsif req.build?
-                !includes.include?("build?")
-              end
-            end
-
-            reqs = reqs_by_formula.map(&:last)
+          deps ||= if recursive
+            recursive_includes(Dependency, f, includes, ignores)
           else
-            deps ||= reject_ignores(f.deps, ignores, includes)
-            reqs   = reject_ignores(f.requirements, ignores, includes)
+            reject_ignores(f.deps, ignores, includes)
           end
 
-          next true if deps.any? do |dep|
+          deps.any? do |dep|
             begin
               dep.to_formula.full_name == ff.full_name
             rescue
               dep.name == ff.name
             end
           end
-
-          reqs.any? { |req| req.name == ff.name }
         rescue FormulaUnavailableError
           # Silently ignore this case as we don't care about things used in
           # taps that aren't currently tapped.
diff --git a/Library/Homebrew/compat.rb b/Library/Homebrew/compat.rb
index a882f5a699..8183861564 100644
--- a/Library/Homebrew/compat.rb
+++ b/Library/Homebrew/compat.rb
@@ -1,32 +1,10 @@
-require "compat/fails_with_llvm"
-require "compat/tap"
 require "compat/hbc"
 require "compat/formula"
-require "compat/formula_specialties"
 require "compat/formula_support"
-require "compat/global"
-require "compat/hardware"
-require "compat/macos"
-require "compat/md5"
-require "compat/sha1"
 require "compat/requirements"
-require "compat/version"
 require "compat/download_strategy"
-require "compat/keg"
-require "compat/pathname"
 require "compat/dependency_collector"
-require "compat/language/haskell"
-require "compat/xcode"
-require "compat/software_spec"
-require "compat/utils"
-require "compat/json"
-require "compat/ARGV"
-require "compat/build_options"
-require "compat/tab"
 require "compat/ENV/shared"
-require "compat/ENV/std"
-require "compat/ENV/super"
-require "compat/utils/shell"
 require "compat/extend/string"
 require "compat/gpg"
 require "compat/dependable"
diff --git a/Library/Homebrew/compat/ARGV.rb b/Library/Homebrew/compat/ARGV.rb
deleted file mode 100644
index e56c4e01fd..0000000000
--- a/Library/Homebrew/compat/ARGV.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-module HomebrewArgvExtension
-  def build_32_bit?
-    odisabled "ARGV.build_32_bit?"
-  end
-end
diff --git a/Library/Homebrew/compat/ENV/shared.rb b/Library/Homebrew/compat/ENV/shared.rb
index 36ee456270..6bca25f9de 100644
--- a/Library/Homebrew/compat/ENV/shared.rb
+++ b/Library/Homebrew/compat/ENV/shared.rb
@@ -1,10 +1,9 @@
 module SharedEnvExtension
   def j1
-    odeprecated "ENV.j1", "ENV.deparallelize"
-    deparallelize
+    odisabled "ENV.j1", "ENV.deparallelize"
   end
 
   def java_cache
-    odeprecated "ENV.java_cache"
+    odisabled "ENV.java_cache"
   end
 end
diff --git a/Library/Homebrew/compat/ENV/std.rb b/Library/Homebrew/compat/ENV/std.rb
deleted file mode 100644
index beca4ed6f4..0000000000
--- a/Library/Homebrew/compat/ENV/std.rb
+++ /dev/null
@@ -1,25 +0,0 @@
-module Stdenv
-  def fast
-    odisabled "ENV.fast"
-  end
-
-  def O4
-    odisabled "ENV.O4"
-  end
-
-  def Og
-    odisabled "ENV.Og"
-  end
-
-  def gcc_4_0_1
-    odisabled "ENV.gcc_4_0_1", "ENV.gcc_4_0"
-  end
-
-  def gcc
-    odisabled "ENV.gcc", "ENV.gcc_4_2"
-  end
-
-  def libpng
-    odisabled "ENV.libpng", "ENV.x11"
-  end
-end
diff --git a/Library/Homebrew/compat/ENV/super.rb b/Library/Homebrew/compat/ENV/super.rb
deleted file mode 100644
index 53a6bdc4d6..0000000000
--- a/Library/Homebrew/compat/ENV/super.rb
+++ /dev/null
@@ -1,45 +0,0 @@
-module Superenv
-  def fast
-    odisabled "ENV.fast"
-  end
-
-  def O4
-    odisabled "ENV.O4"
-  end
-
-  def Og
-    odisabled "ENV.Og"
-  end
-
-  def gcc_4_0_1
-    odisabled "ENV.gcc_4_0_1", "ENV.gcc_4_0"
-  end
-
-  def gcc
-    odisabled "ENV.gcc", "ENV.gcc_4_2"
-  end
-
-  def libxml2
-    odisabled "ENV.libxml2"
-  end
-
-  def minimal_optimization
-    odisabled "ENV.minimal_optimization"
-  end
-
-  def no_optimization
-    odisabled "ENV.no_optimization"
-  end
-
-  def enable_warnings
-    odisabled "ENV.enable_warnings"
-  end
-
-  def macosxsdk
-    odisabled "ENV.macosxsdk"
-  end
-
-  def remove_macosxsdk
-    odisabled "ENV.remove_macosxsdk"
-  end
-end
diff --git a/Library/Homebrew/compat/build_options.rb b/Library/Homebrew/compat/build_options.rb
deleted file mode 100644
index 6e566a08c9..0000000000
--- a/Library/Homebrew/compat/build_options.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class BuildOptions
-  def build_32_bit?
-    odisabled "build.build_32_bit?"
-  end
-
-  def build_bottle?
-    odisabled "build.build_bottle?", "build.bottle?"
-  end
-end
diff --git a/Library/Homebrew/compat/dependable.rb b/Library/Homebrew/compat/dependable.rb
index faeeb9b183..1b7eec2f0c 100644
--- a/Library/Homebrew/compat/dependable.rb
+++ b/Library/Homebrew/compat/dependable.rb
@@ -1,5 +1,6 @@
 module Dependable
   def run?
+    odeprecated "Dependable#run?"
     tags.include? :run
   end
 end
diff --git a/Library/Homebrew/compat/dependency_collector.rb b/Library/Homebrew/compat/dependency_collector.rb
index 9ee2b14035..685bbaf0ea 100644
--- a/Library/Homebrew/compat/dependency_collector.rb
+++ b/Library/Homebrew/compat/dependency_collector.rb
@@ -9,56 +9,42 @@ class DependencyCollector
 
     def parse_string_spec(spec, tags)
       if (tag = tags.first) && LANGUAGE_MODULES.include?(tag)
-        odeprecated "'depends_on ... => #{tag.inspect}'"
-        LanguageModuleRequirement.new(tag, spec, tags[1])
-      else
-        super
+        odisabled "'depends_on ... => #{tag.inspect}'"
       end
+
+      if tags.include?(:run)
+        odeprecated "'depends_on ... => :run'"
+      end
+
+      super
     end
 
     def parse_symbol_spec(spec, tags)
       case spec
       when :clt
-        odeprecated "'depends_on :clt'"
+        odisabled "'depends_on :clt'"
       when :tex
-        odeprecated "'depends_on :tex'"
-        TeXRequirement.new(tags)
-      when :autoconf, :automake, :bsdmake, :libtool
-        output_deprecation(spec)
-        autotools_dep(spec, tags)
-      when :cairo, :fontconfig, :freetype, :libpng, :pixman
-        output_deprecation(spec)
-        Dependency.new(spec.to_s, tags)
-      when :ant, :expat
-        output_deprecation(spec)
-        Dependency.new(spec.to_s, tags)
+        odisabled "'depends_on :tex'"
       when :libltdl
-        output_deprecation("libtool")
-        Dependency.new("libtool", tags)
+        output_disabled(spec, "libtool")
       when :apr
-        output_deprecation(spec, "apr-util")
-        Dependency.new("apr-util", tags)
+        output_disabled(spec, "apr-util")
       when :fortran
-        output_deprecation(spec, "gcc")
-        Dependency.new("gcc", tags)
+        output_disabled(spec, "gcc")
       when :gpg
-        output_deprecation(spec, "gnupg")
-        Dependency.new("gnupg", tags)
+        output_disabled(spec, "gnupg")
       when :hg
-        output_deprecation(spec, "mercurial")
-        Dependency.new("mercurial", tags)
+        output_disabled(spec, "mercurial")
       when :mpi
-        output_deprecation(spec, "open-mpi")
-        Dependency.new("open-mpi", tags)
+        output_disabled(spec, "open-mpi")
       when :python, :python2
-        output_deprecation(spec, "python@2")
-        Dependency.new("python@2", tags)
+        output_disabled(spec, "python@2")
       when :python3
-        output_deprecation(spec, "python")
-        Dependency.new("python", tags)
-      when :emacs, :mysql, :perl, :postgresql, :rbenv, :ruby
-        output_deprecation(spec)
-        Dependency.new(spec.to_s, tags)
+        output_disabled(spec, "python")
+      when :ant, :autoconf, :automake, :bsdmake, :cairo, :emacs, :expat,
+           :fontconfig, :freetype, :libtool, :libpng, :mysql, :perl, :pixman,
+           :postgresql, :rbenv, :ruby
+        output_disabled(spec)
       else
         super
       end
@@ -66,14 +52,9 @@ class DependencyCollector
 
     private
 
-    def autotools_dep(spec, tags)
-      tags << :build
-      Dependency.new(spec.to_s, tags)
-    end
-
-    def output_deprecation(dependency, new_dependency = dependency)
-      odeprecated "'depends_on :#{dependency}'",
-                  "'depends_on \"#{new_dependency}\"'"
+    def output_disabled(dependency, new_dependency = dependency)
+      odisabled "'depends_on :#{dependency}'",
+                "'depends_on \"#{new_dependency}\"'"
     end
   end
 
diff --git a/Library/Homebrew/compat/extend/string.rb b/Library/Homebrew/compat/extend/string.rb
index 9d1f665576..0795ab376a 100644
--- a/Library/Homebrew/compat/extend/string.rb
+++ b/Library/Homebrew/compat/extend/string.rb
@@ -1,7 +1,6 @@
 class String
   def undent
-    odeprecated "<<-EOS.undent", "<<~EOS"
-    gsub(/^[ \t]{#{(slice(/^[ \t]+/) || '').length}}/, "")
+    odisabled "<<-EOS.undent", "<<~EOS"
   end
   alias unindent undent
 
diff --git a/Library/Homebrew/compat/fails_with_llvm.rb b/Library/Homebrew/compat/fails_with_llvm.rb
deleted file mode 100644
index 47bda4e0b3..0000000000
--- a/Library/Homebrew/compat/fails_with_llvm.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class Formula
-  def fails_with_llvm(_msg = nil, _data = nil)
-    odisabled "Formula#fails_with_llvm in install"
-  end
-
-  def self.fails_with_llvm(_msg = nil, _data = {})
-    odisabled "Formula.fails_with_llvm"
-  end
-end
diff --git a/Library/Homebrew/compat/formula.rb b/Library/Homebrew/compat/formula.rb
index 6f740710d8..3462184beb 100644
--- a/Library/Homebrew/compat/formula.rb
+++ b/Library/Homebrew/compat/formula.rb
@@ -1,74 +1,11 @@
-module FormulaCompat
-  def x11_installed?
-    odisabled "Formula#x11_installed?", "MacOS::X11.installed?"
-  end
-
-  def snow_leopard_64?
-    odisabled "Formula#snow_leopard_64?", "MacOS.prefer_64_bit?"
-  end
-end
-
 class Formula
-  include FormulaCompat
-  extend FormulaCompat
-
-  def std_cmake_parameters
-    odisabled "Formula#std_cmake_parameters", "Formula#std_cmake_args"
-  end
-
-  def cxxstdlib_check(_)
-    odisabled "Formula#cxxstdlib_check in install",
-              "Formula.cxxstdlib_check outside install"
-  end
-
-  def self.bottle_sha1(*)
-    odisabled "Formula.bottle_sha1"
-  end
-
-  def self.all
-    odisabled "Formula.all", "Formula.map"
-  end
-
-  def self.canonical_name(_)
-    odisabled "Formula.canonical_name", "Formulary.canonical_name"
-  end
-
-  def self.class_s(_)
-    odisabled "Formula.class_s", "Formulary.class_s"
-  end
-
-  def self.factory(_)
-    odisabled "Formula.factory", "Formulary.factory"
-  end
-
-  def self.require_universal_deps
-    odisabled "Formula.require_universal_deps"
-  end
-
-  def self.path(_)
-    odisabled "Formula.path", "Formulary.core_path"
-  end
-
-  DATA = :DATA
-
   def patches
     # Don't print deprecation warning because this method is inherited
     # when used.
     {}
   end
 
-  def python(_options = {}, &_)
-    odisabled "Formula#python"
-  end
-  alias python2 python
-  alias python3 python
-
-  def startup_plist
-    odisabled "Formula#startup_plist", "Formula#plist"
-  end
-
-  def rake(*args)
-    odeprecated "FileUtils#rake", "system \"rake\""
-    system "rake", *args
+  def rake(*)
+    odisabled "FileUtils#rake", "system \"rake\""
   end
 end
diff --git a/Library/Homebrew/compat/formula_specialties.rb b/Library/Homebrew/compat/formula_specialties.rb
deleted file mode 100644
index bc4d20beab..0000000000
--- a/Library/Homebrew/compat/formula_specialties.rb
+++ /dev/null
@@ -1,23 +0,0 @@
-class ScriptFileFormula < Formula
-  def install
-    odisabled "ScriptFileFormula#install", "Formula#install"
-  end
-end
-
-class GithubGistFormula < ScriptFileFormula
-  def self.url(_val)
-    odisabled "GithubGistFormula.url", "Formula.url"
-  end
-end
-
-class AmazonWebServicesFormula < Formula
-  def install
-    odisabled "AmazonWebServicesFormula#install", "Formula#install"
-  end
-  alias standard_install install
-
-  # Use this method to generate standard caveats.
-  def standard_instructions(_, _)
-    odisabled "AmazonWebServicesFormula#standard_instructions", "Formula#caveats"
-  end
-end
diff --git a/Library/Homebrew/compat/formula_support.rb b/Library/Homebrew/compat/formula_support.rb
index 9cb8d8ff14..9a4348ef18 100644
--- a/Library/Homebrew/compat/formula_support.rb
+++ b/Library/Homebrew/compat/formula_support.rb
@@ -5,11 +5,9 @@ class KegOnlyReason
     def to_s
       case @reason
       when :provided_by_osx
-        odeprecated "keg_only :provided_by_osx", "keg_only :provided_by_macos"
-        @reason = :provided_by_macos
+        odisabled "keg_only :provided_by_osx", "keg_only :provided_by_macos"
       when :shadowed_by_osx
-        odeprecated "keg_only :shadowed_by_osx", "keg_only :shadowed_by_macos"
-        @reason = :shadowed_by_macos
+        odisabled "keg_only :shadowed_by_osx", "keg_only :shadowed_by_macos"
       end
 
       super
diff --git a/Library/Homebrew/compat/global.rb b/Library/Homebrew/compat/global.rb
deleted file mode 100644
index 9c8f0624cc..0000000000
--- a/Library/Homebrew/compat/global.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-module Homebrew
-  module_function
-
-  def method_missing(method, *args, &block)
-    if instance_methods.include?(method)
-      odisabled "#{self}##{method}", "'module_function' or 'def self.#{method}' to convert it to a class method"
-    end
-    super
-  end
-
-  def respond_to_missing?(method, include_private = false)
-    return true if method_defined?(method)
-    super(method, include_private)
-  end
-end
diff --git a/Library/Homebrew/compat/gpg.rb b/Library/Homebrew/compat/gpg.rb
index cdcbe2018d..5aaecf4d31 100644
--- a/Library/Homebrew/compat/gpg.rb
+++ b/Library/Homebrew/compat/gpg.rb
@@ -3,24 +3,22 @@ module Gpg
   module_function
 
   def executable
-    odeprecated "Gpg.executable", 'which "gpg"'
-    which "gpg"
+    odisabled "Gpg.executable", 'which "gpg"'
   end
 
   def available?
-    odeprecated "Gpg.available?", 'which "gpg"'
-    File.executable?(executable.to_s)
+    odisabled "Gpg.available?", 'which "gpg"'
   end
 
   def create_test_key(_)
-    odeprecated "Gpg.create_test_key"
+    odisabled "Gpg.create_test_key"
   end
 
   def cleanup_test_processes!
-    odeprecated "Gpg.cleanup_test_processes!"
+    odisabled "Gpg.cleanup_test_processes!"
   end
 
   def test(_)
-    odeprecated "Gpg.test"
+    odisabled "Gpg.test"
   end
 end
diff --git a/Library/Homebrew/compat/hardware.rb b/Library/Homebrew/compat/hardware.rb
deleted file mode 100644
index 28bc79c60d..0000000000
--- a/Library/Homebrew/compat/hardware.rb
+++ /dev/null
@@ -1,35 +0,0 @@
-module Hardware
-  class << self
-    def is_32_bit?
-      odisabled "Hardware.is_32_bit?", "Hardware::CPU.is_32_bit?"
-    end
-
-    def is_64_bit?
-      odisabled "Hardware.is_64_bit?", "Hardware::CPU.is_64_bit?"
-    end
-
-    def bits
-      odisabled "Hardware.bits", "Hardware::CPU.bits"
-    end
-
-    def cpu_type
-      odisabled "Hardware.cpu_type", "Hardware::CPU.type"
-    end
-
-    def cpu_family
-      odisabled "Hardware.cpu_family", "Hardware::CPU.family"
-    end
-
-    def intel_family
-      odisabled "Hardware.intel_family", "Hardware::CPU.family"
-    end
-
-    def ppc_family
-      odisabled "Hardware.ppc_family", "Hardware::CPU.family"
-    end
-
-    def processor_count
-      odisabled "Hardware.processor_count", "Hardware::CPU.cores"
-    end
-  end
-end
diff --git a/Library/Homebrew/compat/json.rb b/Library/Homebrew/compat/json.rb
deleted file mode 100644
index 18763b8a6e..0000000000
--- a/Library/Homebrew/compat/json.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-require "json"
-
-module Utils
-  module JSON
-    module_function
-
-    def load(_)
-      odisabled "Utils::JSON.load", "JSON.parse"
-    end
-
-    def dump(_)
-      odisabled "Utils::JSON.dump", "JSON.generate"
-    end
-
-    def stringify_keys(_)
-      odisabled "Utils::JSON.stringify_keys"
-    end
-  end
-end
diff --git a/Library/Homebrew/compat/keg.rb b/Library/Homebrew/compat/keg.rb
deleted file mode 100644
index 81e1cf0b3f..0000000000
--- a/Library/Homebrew/compat/keg.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class Keg
-  def fname
-    odisabled "Keg#fname", "Keg#name"
-  end
-end
diff --git a/Library/Homebrew/compat/language/haskell.rb b/Library/Homebrew/compat/language/haskell.rb
deleted file mode 100644
index 8e50598743..0000000000
--- a/Library/Homebrew/compat/language/haskell.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-module Language
-  module Haskell
-    module Cabal
-      def cabal_clean_lib
-        odisabled "Language::Haskell::Cabal#cabal_clean_lib"
-      end
-    end
-  end
-end
diff --git a/Library/Homebrew/compat/macos.rb b/Library/Homebrew/compat/macos.rb
deleted file mode 100644
index 879af83571..0000000000
--- a/Library/Homebrew/compat/macos.rb
+++ /dev/null
@@ -1,124 +0,0 @@
-require "development_tools"
-
-if OS.mac?
-  MACOS_FULL_VERSION = OS::Mac.full_version.to_s.freeze
-  MACOS_VERSION = OS::Mac.version.to_s.freeze
-end
-
-module OS
-  module Mac
-    module_function
-
-    def xcode_folder
-      odisabled "MacOS.xcode_folder", "MacOS::Xcode.folder"
-    end
-
-    def xcode_prefix
-      odisabled "MacOS.xcode_prefix", "MacOS::Xcode.prefix"
-    end
-
-    def xcode_installed?
-      odisabled "MacOS.xcode_installed?", "MacOS::Xcode.installed?"
-    end
-
-    def xcode_version
-      odisabled "MacOS.xcode_version", "MacOS::Xcode.version"
-    end
-
-    def clt_installed?
-      odisabled "MacOS.clt_installed?", "MacOS::CLT.installed?"
-    end
-
-    def clt_version?
-      odisabled "MacOS.clt_version?", "MacOS::CLT.version"
-    end
-
-    def x11_installed?
-      odisabled "MacOS.x11_installed?", "MacOS::X11.installed?"
-    end
-
-    def x11_prefix
-      odisabled "MacOS.x11_prefix", "MacOS::X11.prefix"
-    end
-
-    def leopard?
-      odisabled "MacOS.leopard?", "'MacOS.version == :leopard'"
-    end
-
-    def snow_leopard?
-      odisabled "MacOS.snow_leopard?", "'MacOS.version >= :snow_leopard'"
-    end
-
-    def snow_leopard_or_newer?
-      odisabled "MacOS.snow_leopard_or_newer?", "'MacOS.version >= :snow_leopard'"
-    end
-
-    def lion?
-      odisabled "MacOS.lion?", "'MacOS.version >= :lion'"
-    end
-
-    def lion_or_newer?
-      odisabled "MacOS.lion_or_newer?", "'MacOS.version >= :lion'"
-    end
-
-    def mountain_lion?
-      odisabled "MacOS.mountain_lion?", "'MacOS.version >= :mountain_lion'"
-    end
-
-    def mountain_lion_or_newer?
-      odisabled "MacOS.mountain_lion_or_newer?", "'MacOS.version >= :mountain_lion'"
-    end
-
-    def macports_or_fink_installed?
-      odisabled "MacOS.macports_or_fink_installed?", "!MacOS.macports_or_fink.empty?"
-    end
-
-    def locate(_)
-      odisabled "MacOS.locate", "DevelopmentTools.locate"
-    end
-
-    def default_cc
-      odisabled "MacOS.default_cc", "DevelopmentTools.default_cc"
-    end
-
-    def default_compiler
-      odisabled "MacOS.default_compiler", "DevelopmentTools.default_compiler"
-    end
-
-    def gcc_40_build_version
-      odisabled "MacOS.gcc_40_build_version", "DevelopmentTools.gcc_4_0_build_version"
-    end
-
-    def gcc_4_0_build_version
-      odisabled "MacOS.gcc_4_0_build_version", "DevelopmentTools.gcc_4_0_build_version"
-    end
-
-    def gcc_42_build_version
-      odisabled "MacOS.gcc_42_build_version", "DevelopmentTools.gcc_4_2_build_version"
-    end
-
-    def gcc_build_version
-      odisabled "MacOS.gcc_build_version", "DevelopmentTools.gcc_4_2_build_version"
-    end
-
-    def llvm_build_version
-      odisabled "MacOS.llvm_build_version"
-    end
-
-    def clang_version
-      odisabled "MacOS.clang_version", "DevelopmentTools.clang_version"
-    end
-
-    def clang_build_version
-      odisabled "MacOS.clang_build_version", "DevelopmentTools.clang_build_version"
-    end
-
-    def has_apple_developer_tools?
-      odisabled "MacOS.has_apple_developer_tools?", "DevelopmentTools.installed?"
-    end
-
-    def release
-      odisabled "MacOS.release", "MacOS.version"
-    end
-  end
-end
diff --git a/Library/Homebrew/compat/md5.rb b/Library/Homebrew/compat/md5.rb
deleted file mode 100644
index ede7edecb8..0000000000
--- a/Library/Homebrew/compat/md5.rb
+++ /dev/null
@@ -1,23 +0,0 @@
-class Formula
-  def self.md5(_val)
-    odisabled "Formula.md5", "Formula.sha256"
-  end
-end
-
-class SoftwareSpec
-  def md5(_val)
-    odisabled "SoftwareSpec#md5", "SoftwareSpec#sha256"
-  end
-end
-
-class Resource
-  def md5(_val)
-    odisabled "Resource#md5", "Resource#sha256"
-  end
-end
-
-class Pathname
-  def md5
-    odisabled "Pathname#md5", "Pathname#sha256"
-  end
-end
diff --git a/Library/Homebrew/compat/pathname.rb b/Library/Homebrew/compat/pathname.rb
deleted file mode 100644
index df4b261a91..0000000000
--- a/Library/Homebrew/compat/pathname.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class Pathname
-  def cp(_)
-    odisabled "Pathname#cp", "FileUtils.cp"
-  end
-
-  def chmod_R(_)
-    odisabled "Pathname#chmod_R", "FileUtils.chmod_R"
-  end
-end
diff --git a/Library/Homebrew/compat/requirements.rb b/Library/Homebrew/compat/requirements.rb
index 3dd5c74795..af0a9a25d0 100644
--- a/Library/Homebrew/compat/requirements.rb
+++ b/Library/Homebrew/compat/requirements.rb
@@ -1,123 +1,107 @@
 require "requirements"
-require "compat/requirements/language_module_requirement"
 
 class CVSRequirement < Requirement
   fatal true
   satisfy do
-    odeprecated("CVSRequirement", "'depends_on \"cvs\"'")
-    which "cvs"
+    odisabled("CVSRequirement", "'depends_on \"cvs\"'")
   end
 end
 
 class EmacsRequirement < Requirement
   fatal true
   satisfy do
-    odeprecated("EmacsRequirement", "'depends_on \"emacs\"'")
-    which "emacs"
+    odisabled("EmacsRequirement", "'depends_on \"emacs\"'")
   end
 end
 
 class FortranRequirement < Requirement
   fatal true
   satisfy do
-    odeprecated("FortranRequirement", "'depends_on \"gcc\"'")
-    which "gfortran"
+    odisabled("FortranRequirement", "'depends_on \"gcc\"'")
   end
 end
 
 class GitRequirement < Requirement
   fatal true
   satisfy do
-    odeprecated("GitRequirement", "'depends_on \"git\"'")
-    which "git"
+    odisabled("GitRequirement", "'depends_on \"git\"'")
   end
 end
 
 class GPG2Requirement < Requirement
   fatal true
   satisfy do
-    odeprecated("GPG2Requirement", "'depends_on \"gnupg\"'")
-    which "gpg"
+    odisabled("GPG2Requirement", "'depends_on \"gnupg\"'")
   end
 end
 
 class MercurialRequirement < Requirement
   fatal true
   satisfy do
-    odeprecated("MercurialRequirement", "'depends_on \"mercurial\"'")
-    which "hg"
+    odisabled("MercurialRequirement", "'depends_on \"mercurial\"'")
   end
 end
 
 class MPIRequirement < Requirement
   fatal true
   satisfy do
-    odeprecated("MPIRequirement", "'depends_on \"open-mpi\"'")
-    which "mpicc"
+    odisabled("MPIRequirement", "'depends_on \"open-mpi\"'")
   end
 end
 
 class MysqlRequirement < Requirement
   fatal true
   satisfy do
-    odeprecated("MysqlRequirement", "'depends_on \"mysql\"'")
-    which "mysql_config"
+    odisabled("MysqlRequirement", "'depends_on \"mysql\"'")
   end
 end
 
 class PerlRequirement < Requirement
   fatal true
   satisfy do
-    odeprecated("PerlRequirement", "'depends_on \"perl\"'")
-    which "perl"
+    odisabled("PerlRequirement", "'depends_on \"perl\"'")
   end
 end
 
 class PostgresqlRequirement < Requirement
   fatal true
   satisfy do
-    odeprecated("PostgresqlRequirement", "'depends_on \"postgresql\"'")
-    which "pg_config"
+    odisabled("PostgresqlRequirement", "'depends_on \"postgresql\"'")
   end
 end
 
 class PythonRequirement < Requirement
   fatal true
   satisfy do
-    odeprecated("PythonRequirement", "'depends_on \"python@2\"'")
-    which "python2"
+    odisabled("PythonRequirement", "'depends_on \"python@2\"'")
   end
 end
 
 class Python3Requirement < Requirement
   fatal true
   satisfy do
-    odeprecated("Python3Requirement", "'depends_on \"python\"'")
-    which "python"
+    odisabled("Python3Requirement", "'depends_on \"python\"'")
   end
 end
 
 class RbenvRequirement < Requirement
   fatal true
   satisfy do
-    odeprecated("RbenvRequirement", "'depends_on \"rbenv\"'")
-    which "rbenv"
+    odisabled("RbenvRequirement", "'depends_on \"rbenv\"'")
   end
 end
 
 class RubyRequirement < Requirement
   fatal true
   satisfy do
-    odeprecated("RubyRequirement", "'depends_on \"ruby\"'")
-    which "ruby"
+    odisabled("RubyRequirement", "'depends_on \"ruby\"'")
   end
 end
 
 class SubversionRequirement < Requirement
   fatal true
   satisfy do
-    odeprecated("SubversionRequirement", "'depends_on \"subversion\"'")
-    which "svn"
+    odisabled("SubversionRequirement", "'depends_on \"subversion\"'")
   end
 end
 
@@ -126,8 +110,7 @@ class TeXRequirement < Requirement
   cask "mactex"
   download "https://www.tug.org/mactex/"
   satisfy do
-    odeprecated("TeXRequirement")
-    which("tex") || which("latex")
+    odisabled("TeXRequirement")
   end
 end
 
diff --git a/Library/Homebrew/compat/requirements/language_module_requirement.rb b/Library/Homebrew/compat/requirements/language_module_requirement.rb
deleted file mode 100644
index fc9dcc4428..0000000000
--- a/Library/Homebrew/compat/requirements/language_module_requirement.rb
+++ /dev/null
@@ -1,63 +0,0 @@
-require "requirement"
-
-class LanguageModuleRequirement < Requirement
-  fatal true
-
-  def initialize(language, module_name, import_name = nil)
-    @language = language
-    @module_name = module_name
-    @import_name = import_name || module_name
-    super([language, module_name, import_name])
-  end
-
-  satisfy(build_env: false) { quiet_system(*the_test) }
-
-  def message
-    s = <<~EOS
-      Unsatisfied dependency: #{@module_name}
-      Homebrew does not provide special #{@language.to_s.capitalize} dependencies; install with:
-        `#{command_line} #{@module_name}`
-    EOS
-
-    unless [:python, :perl, :ruby].include? @language
-      s += <<~EOS
-        You may need to: `brew install #{@language}`
-
-      EOS
-    end
-
-    s
-  end
-
-  def the_test
-    case @language
-    when :lua
-      ["/usr/bin/env", "luarocks-5.2", "show", @import_name.to_s]
-    when :lua51
-      ["/usr/bin/env", "luarocks-5.1", "show", @import_name.to_s]
-    when :perl
-      ["/usr/bin/env", "perl", "-e", "use #{@import_name}"]
-    when :python
-      ["/usr/bin/env", "python2", "-c", "import #{@import_name}"]
-    when :python3
-      ["/usr/bin/env", "python", "-c", "import #{@import_name}"]
-    when :ruby
-      ["/usr/bin/env", "ruby", "-rubygems", "-e", "require '#{@import_name}'"]
-    end
-  end
-
-  def command_line
-    case @language
-    when :lua     then "luarocks-5.2 install"
-    when :lua51   then "luarocks-5.1 install"
-    when :perl    then "cpan -i"
-    when :python  then "pip3 install"
-    when :python3 then "pip install"
-    when :ruby    then "gem install"
-    end
-  end
-
-  def display_s
-    "#{@module_name} (#{@language} module)"
-  end
-end
diff --git a/Library/Homebrew/compat/sha1.rb b/Library/Homebrew/compat/sha1.rb
deleted file mode 100644
index adf11bdd5c..0000000000
--- a/Library/Homebrew/compat/sha1.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-class Formula
-  def self.sha1(_val)
-    odisabled "Formula.sha1", "Formula.sha256"
-  end
-end
-
-class SoftwareSpec
-  def sha1(_val)
-    odisabled "SoftwareSpec#sha1", "SoftwareSpec#sha256"
-  end
-end
-
-class Resource
-  def sha1(_val)
-    odisabled "Resource#sha1", "Resource#sha256"
-  end
-end
-
-class BottleSpecification
-  def sha1(_val)
-    odisabled "BottleSpecification#sha1", "BottleSpecification#sha256"
-  end
-end
-
-class Pathname
-  def sha1
-    odisabled "Pathname#sha1", "Pathname#sha256"
-  end
-end
diff --git a/Library/Homebrew/compat/software_spec.rb b/Library/Homebrew/compat/software_spec.rb
deleted file mode 100644
index 814c00fa88..0000000000
--- a/Library/Homebrew/compat/software_spec.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class BottleSpecification
-  def revision(*)
-    odisabled "BottleSpecification.revision", "BottleSpecification.rebuild"
-  end
-end
diff --git a/Library/Homebrew/compat/tab.rb b/Library/Homebrew/compat/tab.rb
deleted file mode 100644
index 651bcf1e19..0000000000
--- a/Library/Homebrew/compat/tab.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class Tab < OpenStruct
-  def build_32_bit?
-    odisabled "Tab.build_32_bit?"
-  end
-end
diff --git a/Library/Homebrew/compat/tap.rb b/Library/Homebrew/compat/tap.rb
deleted file mode 100644
index 9f4384da0e..0000000000
--- a/Library/Homebrew/compat/tap.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-
-class Tap
-  def core_formula_repository?
-    odisabled "Tap#core_formula_repository?", "Tap#core_tap?"
-  end
-end
diff --git a/Library/Homebrew/compat/utils.rb b/Library/Homebrew/compat/utils.rb
deleted file mode 100644
index f83d075998..0000000000
--- a/Library/Homebrew/compat/utils.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-module Tty
-  module_function
-
-  def white
-    odisabled "Tty.white", "Tty.reset.bold"
-  end
-end
-
-def puts_columns(_)
-  odisabled "puts_columns", "puts Formatter.columns"
-end
-
-def plural(_, _)
-  odisabled "#plural", "Formatter.pluralize"
-end
diff --git a/Library/Homebrew/compat/utils/shell.rb b/Library/Homebrew/compat/utils/shell.rb
deleted file mode 100644
index 2f387d967b..0000000000
--- a/Library/Homebrew/compat/utils/shell.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-module Utils
-  module Shell
-    def self.shell_profile
-      odisabled "Utils::Shell.shell_profile", "Utils::Shell.profile"
-    end
-  end
-end
diff --git a/Library/Homebrew/compat/version.rb b/Library/Homebrew/compat/version.rb
deleted file mode 100644
index 4a6fd7ace5..0000000000
--- a/Library/Homebrew/compat/version.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class Version
-  def slice(*)
-    odisabled "Version#slice", "Version#to_s.slice"
-  end
-end
diff --git a/Library/Homebrew/compat/xcode.rb b/Library/Homebrew/compat/xcode.rb
deleted file mode 100644
index f212ada641..0000000000
--- a/Library/Homebrew/compat/xcode.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-module OS
-  module Mac
-    module Xcode
-      module_function
-
-      def provides_autotools?
-        odisabled "OS::Mac::Xcode.provides_autotools?"
-      end
-    end
-  end
-end
diff --git a/Library/Homebrew/extend/pathname.rb b/Library/Homebrew/extend/pathname.rb
index 159c90d198..ec7293496e 100644
--- a/Library/Homebrew/extend/pathname.rb
+++ b/Library/Homebrew/extend/pathname.rb
@@ -366,7 +366,7 @@ class Pathname
   unless method_defined?(:/)
     def /(other)
       if !other.respond_to?(:to_str) && !other.respond_to?(:to_path)
-        odeprecated "Pathname#/ with #{other.class}", "a String or a Pathname"
+        odisabled "Pathname#/ with #{other.class}", "a String or a Pathname"
       end
       join(other.to_s)
     end
diff --git a/Library/Homebrew/formula.rb b/Library/Homebrew/formula.rb
index 157dad1fca..d4c248e190 100644
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@@ -2348,7 +2348,7 @@ class Formula
     #   version '4.8.1'
     # end</pre>
     def fails_with(compiler, &block)
-      odeprecated "fails_with :llvm" if compiler == :llvm
+      odisabled "fails_with :llvm" if compiler == :llvm
       specs.each { |spec| spec.fails_with(compiler, &block) }
     end
 
diff --git a/Library/Homebrew/requirement.rb b/Library/Homebrew/requirement.rb
index f70746c316..d922a22772 100644
--- a/Library/Homebrew/requirement.rb
+++ b/Library/Homebrew/requirement.rb
@@ -140,7 +140,7 @@ class Requirement
     attr_rw :fatal, :cask, :download
 
     def default_formula(_val = nil)
-      odeprecated "Requirement.default_formula"
+      odisabled "Requirement.default_formula"
     end
 
     def satisfy(options = nil, &block)
diff --git a/Library/Homebrew/software_spec.rb b/Library/Homebrew/software_spec.rb
index 9ef63adbaf..ce3cac8064 100644
--- a/Library/Homebrew/software_spec.rb
+++ b/Library/Homebrew/software_spec.rb
@@ -128,9 +128,9 @@ class SoftwareSpec
   def option(name, description = "")
     opt = PREDEFINED_OPTIONS.fetch(name) do
       if name.is_a?(Symbol)
-        odeprecated "passing arbitrary symbols (i.e. #{name.inspect}) to `option`"
-        name = name.to_s
+        odisabled "passing arbitrary symbols (i.e. #{name.inspect}) to `option`"
       end
+
       unless name.is_a?(String)
         raise ArgumentError, "option name must be string or symbol; got a #{name.class}: #{name}"
       end
@@ -205,7 +205,7 @@ class SoftwareSpec
   end
 
   def fails_with(compiler, &block)
-    odeprecated "fails_with :llvm" if compiler == :llvm
+    odisabled "fails_with :llvm" if compiler == :llvm
     compiler_failures << CompilerFailure.create(compiler, &block)
   end
 
diff --git a/Library/Homebrew/test/cmd/linkapps_spec.rb b/Library/Homebrew/test/cmd/linkapps_spec.rb
deleted file mode 100644
index 8fc0d5eb91..0000000000
--- a/Library/Homebrew/test/cmd/linkapps_spec.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-describe "brew linkapps", :integration_test do
-  let(:home_dir) { mktmpdir }
-  let(:apps_dir) { home_dir/"Applications" }
-
-  it "symlinks applications" do
-    apps_dir.mkpath
-
-    setup_test_formula "testball"
-
-    source_app = HOMEBREW_CELLAR/"testball/0.1/TestBall.app"
-    source_app.mkpath
-
-    ENV.delete "HOMEBREW_DEVELOPER"
-
-    expect { brew "linkapps", "--local", "HOME" => home_dir }
-      .to output(/Linking: #{Regexp.escape(source_app)}/).to_stdout
-      .and output(/'brew linkapps' is deprecated/).to_stderr
-      .and be_a_success
-
-    expect(apps_dir/"TestBall.app").to be_a_symlink
-  end
-end
diff --git a/Library/Homebrew/test/cmd/unlinkapps_spec.rb b/Library/Homebrew/test/cmd/unlinkapps_spec.rb
deleted file mode 100644
index 397a8ec5e2..0000000000
--- a/Library/Homebrew/test/cmd/unlinkapps_spec.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-describe "brew unlinkapps", :integration_test do
-  let(:home_dir) { mktmpdir }
-  let(:apps_dir) { home_dir/"Applications" }
-
-  it "unlinks symlinked applications" do
-    apps_dir.mkpath
-
-    setup_test_formula "testball"
-
-    source_app = HOMEBREW_CELLAR/"testball/0.1/TestBall.app"
-    source_app.mkpath
-
-    FileUtils.ln_s source_app, apps_dir/"TestBall.app"
-
-    ENV.delete "HOMEBREW_DEVELOPER"
-
-    expect { brew "unlinkapps", "--local", "HOME" => home_dir }
-      .to output(%r{Unlinking: #{Regexp.escape(apps_dir)}/TestBall.app}).to_stdout
-      .and output(/'brew unlinkapps' is deprecated/).to_stderr
-      .and be_a_success
-  end
-end
diff --git a/Library/Homebrew/test/language_module_requirement_spec.rb b/Library/Homebrew/test/language_module_requirement_spec.rb
deleted file mode 100644
index 43a57ebb59..0000000000
--- a/Library/Homebrew/test/language_module_requirement_spec.rb
+++ /dev/null
@@ -1,46 +0,0 @@
-require "compat/requirements/language_module_requirement"
-
-describe LanguageModuleRequirement, :needs_compat do
-  specify "unique dependencies are not equal" do
-    x = described_class.new(:node, "less")
-    y = described_class.new(:node, "coffee-script")
-    expect(x).not_to eq(y)
-    expect(x.hash).not_to eq(y.hash)
-  end
-
-  context "when module and import name differ" do
-    subject { described_class.new(:python, mod_name, import_name) }
-
-    let(:mod_name) { "foo" }
-    let(:import_name) { "bar" }
-
-    its(:message) { is_expected.to include(mod_name) }
-    its(:the_test) { is_expected.to include("import #{import_name}") }
-  end
-
-  context "when the language is Perl" do
-    it "does not satisfy invalid dependencies" do
-      expect(described_class.new(:perl, "notapackage")).not_to be_satisfied
-    end
-
-    it "satisfies valid dependencies" do
-      expect(described_class.new(:perl, "Env")).to be_satisfied
-    end
-  end
-
-  context "when the language is Python", :needs_python do
-    it "does not satisfy invalid dependencies" do
-      expect(described_class.new(:python, "notapackage")).not_to be_satisfied
-    end
-  end
-
-  context "when the language is Ruby" do
-    it "does not satisfy invalid dependencies" do
-      expect(described_class.new(:ruby, "notapackage")).not_to be_satisfied
-    end
-
-    it "satisfies valid dependencies" do
-      expect(described_class.new(:ruby, "date")).to be_satisfied
-    end
-  end
-end
diff --git a/docs/Manpage.md b/docs/Manpage.md
index 16c87d3066..2e5d0d9ebc 100644
--- a/docs/Manpage.md
+++ b/docs/Manpage.md
@@ -378,9 +378,7 @@ With `--verbose` or `-v`, many commands print extra debugging information. Note
 
   * `prune` [`--dry-run`]:
     Remove dead symlinks from the Homebrew prefix. This is generally not
-    needed, but can be useful when doing DIY installations. Also remove broken
-    app symlinks from `/Applications` and `~/Applications` that were previously
-    created by `brew linkapps`.
+    needed, but can be useful when doing DIY installations.
 
     If `--dry-run` or `-n` is passed, show what would be removed, but do not
     actually remove anything.
diff --git a/manpages/brew.1 b/manpages/brew.1
index 5df06b5b76..d9b2a5b6a6 100644
--- a/manpages/brew.1
+++ b/manpages/brew.1
@@ -388,7 +388,7 @@ Rerun the post\-install steps for \fIformula\fR\.
 .
 .TP
 \fBprune\fR [\fB\-\-dry\-run\fR]
-Remove dead symlinks from the Homebrew prefix\. This is generally not needed, but can be useful when doing DIY installations\. Also remove broken app symlinks from \fB/Applications\fR and \fB~/Applications\fR that were previously created by \fBbrew linkapps\fR\.
+Remove dead symlinks from the Homebrew prefix\. This is generally not needed, but can be useful when doing DIY installations\.
 .
 .IP
 If \fB\-\-dry\-run\fR or \fB\-n\fR is passed, show what would be removed, but do not actually remove anything\.