Remove last use of deprecated Formula#recursive_deps

Fixes Homebrew/homebrew#19107.

Library/Homebrew/cmd/irb.rb

@@ -19,7 +19,7 @@ module Homebrew extend self
       puts "'v8'.f # => instance of the Ack formula"
       puts ":hub.f.installed?"
       puts ":lua.f.methods - 1.methods"
-      puts ":mpd.f.recursive_deps.reject{|f| f.installed? }"
+      puts ":mpd.f.recursive_dependencies.reject(&:installed?)"
     else
       ohai "Interactive Homebrew Shell"
       puts "Example commands available with: brew irb --help"

Library/Homebrew/compat/compatibility.rb

@@ -100,21 +100,6 @@ class Formula
     end
   end
 
-  # These methods return lists of Formula objects.
-  # They are eprecated in favor of Dependency::expand_dependencies
-  # and Formula#recursive_dependencies, which return lists of
-  # Dependency objects instead.
-  def self.expand_deps f
-    f.deps.map do |dep|
-      f_dep = Formula.factory dep.to_s
-      expand_deps(f_dep) << f_dep
-    end
-  end
-
-  def recursive_deps
-    Formula.expand_deps(self).flatten.uniq
-  end
-
   def self.all
     opoo "Formula.all is deprecated, use Formula.map instead"
     map

Library/Homebrew/formula_installer.rb

@@ -81,7 +81,7 @@ class FormulaInstaller
     unless ignore_deps
       # HACK: If readline is present in the dependency tree, it will clash
       # with the stdlib's Readline module when the debugger is loaded
-      if f.recursive_deps.any? { |d| d.name == "readline" } and ARGV.debug?
+      if f.recursive_dependencies.any? { |d| d.name == "readline" } and ARGV.debug?
         ENV['HOMEBREW_NO_READLINE'] = '1'
       end