diff --git a/Library/Homebrew/cask/lib/hbc/cli.rb b/Library/Homebrew/cask/lib/hbc/cli.rb
index 8e2da51d97..fb2f16376c 100644
--- a/Library/Homebrew/cask/lib/hbc/cli.rb
+++ b/Library/Homebrew/cask/lib/hbc/cli.rb
@@ -28,7 +28,6 @@ require "hbc/cli/--version"
 require "hbc/cli/zap"
 
 require "hbc/cli/abstract_internal_command"
-require "hbc/cli/internal_audit_modified_casks"
 require "hbc/cli/internal_help"
 require "hbc/cli/internal_stanza"
 
diff --git a/Library/Homebrew/cask/lib/hbc/cli/internal_audit_modified_casks.rb b/Library/Homebrew/cask/lib/hbc/cli/internal_audit_modified_casks.rb
deleted file mode 100644
index 5094386f12..0000000000
--- a/Library/Homebrew/cask/lib/hbc/cli/internal_audit_modified_casks.rb
+++ /dev/null
@@ -1,118 +0,0 @@
-module Hbc
-  class CLI
-    class InternalAuditModifiedCasks < AbstractInternalCommand
-      RELEVANT_STANZAS = [:version, :sha256, :url].freeze
-
-      option "--cleanup", :cleanup, false
-
-      attr_accessor :commit_range
-      private :commit_range=
-
-      def initialize(*)
-        super
-
-        if args.count != 1
-          raise ArgumentError, <<~EOS
-            This command requires exactly one argument.
-
-            #{self.class.usage}
-          EOS
-        end
-
-        @commit_range = args.first
-      end
-
-      def self.help
-        "audit all modified Casks in a given commit range"
-      end
-
-      def self.usage
-        <<~EOS
-          Usage: brew cask _audit_modified_casks [options...] <commit range>
-
-          Given a range of Git commits, find any Casks that were modified and run `brew
-          cask audit' on them. If the `url', `version', or `sha256' stanzas were modified,
-          run with the `--download' flag to verify the hash.
-
-          Options:
-            -c, --cleanup
-              Remove all cached downloads. Use with care.
-        EOS
-      end
-
-      def run
-        Dir.chdir git_root do
-          modified_cask_files.zip(modified_casks).each do |cask_file, cask|
-            audit(cask, cask_file)
-            Cleanup.run(cask) if cleanup?
-          end
-        end
-        report_failures
-      end
-
-      def git_root
-        @git_root ||= git("rev-parse", "--show-toplevel")
-      end
-
-      def modified_cask_files
-        @modified_cask_files ||= git_filter_cask_files("AMR")
-      end
-
-      def added_cask_files
-        @added_cask_files ||= git_filter_cask_files("A")
-      end
-
-      def git_filter_cask_files(filter)
-        git("diff", "--name-only", "--diff-filter=#{filter}", commit_range,
-            "--", Pathname.new(git_root).join("Casks", "*.rb").to_s).split("\n")
-      end
-
-      def modified_casks
-        return @modified_casks if defined? @modified_casks
-        @modified_casks = modified_cask_files.map { |f| CaskLoader.load(f) }
-        if @modified_casks.any?
-          num_modified = @modified_casks.size
-          ohai "#{Formatter.pluralize(num_modified, "modified cask")}: " \
-            "#{@modified_casks.join(" ")}"
-        end
-        @modified_casks
-      end
-
-      def audit(cask, cask_file)
-        audit_download = audit_download?(cask, cask_file)
-        check_token_conflicts = added_cask_files.include?(cask_file)
-        success = Auditor.audit(cask, audit_download:        audit_download,
-                                      check_token_conflicts: check_token_conflicts,
-                                      commit_range: commit_range)
-        failed_casks << cask unless success
-      end
-
-      def failed_casks
-        @failed_casks ||= []
-      end
-
-      def audit_download?(cask, cask_file)
-        cask.sha256 != :no_check && relevant_stanza_modified?(cask_file)
-      end
-
-      def relevant_stanza_modified?(cask_file)
-        out = git("diff", commit_range, "--", cask_file)
-        out =~ /^\+\s*(#{RELEVANT_STANZAS.join('|')})/
-      end
-
-      def git(*args)
-        odebug ["git", *args].join(" ")
-        out, err, status = Open3.capture3("git", *args)
-        return out.chomp if status.success?
-        odie err.chomp
-      end
-
-      def report_failures
-        return if failed_casks.empty?
-        num_failed = failed_casks.size
-        odie "audit failed for #{Formatter.pluralize(num_failed, "cask")}: " \
-          "#{failed_casks.join(" ")}"
-      end
-    end
-  end
-end