diff --git a/Library/Homebrew/cask/lib/hbc/cask.rb b/Library/Homebrew/cask/lib/hbc/cask.rb
index 0a68ffe92b..e64f16eada 100644
--- a/Library/Homebrew/cask/lib/hbc/cask.rb
+++ b/Library/Homebrew/cask/lib/hbc/cask.rb
@@ -111,29 +111,6 @@ module Hbc
     end
     alias == eql?
 
-    def dumpcask
-      odebug "Cask instance dumps in YAML:"
-      odebug "Cask instance toplevel:", to_yaml
-      [
-        :name,
-        :homepage,
-        :url,
-        :appcast,
-        :version,
-        :sha256,
-        :artifacts,
-        :caveats,
-        :depends_on,
-        :conflicts_with,
-        :container,
-        :gpg,
-        :accessibility_access,
-        :auto_updates,
-      ].each do |method|
-        odebug "Cask instance method '#{method}':", send(method).to_yaml
-      end
-    end
-
     def to_h
       {
         "name" => name,
diff --git a/Library/Homebrew/cask/lib/hbc/cli.rb b/Library/Homebrew/cask/lib/hbc/cli.rb
index f1a673faed..8e2da51d97 100644
--- a/Library/Homebrew/cask/lib/hbc/cli.rb
+++ b/Library/Homebrew/cask/lib/hbc/cli.rb
@@ -29,7 +29,6 @@ require "hbc/cli/zap"
 
 require "hbc/cli/abstract_internal_command"
 require "hbc/cli/internal_audit_modified_casks"
-require "hbc/cli/internal_dump"
 require "hbc/cli/internal_help"
 require "hbc/cli/internal_stanza"
 
diff --git a/Library/Homebrew/cask/lib/hbc/cli/internal_dump.rb b/Library/Homebrew/cask/lib/hbc/cli/internal_dump.rb
deleted file mode 100644
index 8a38ce1bed..0000000000
--- a/Library/Homebrew/cask/lib/hbc/cli/internal_dump.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-module Hbc
-  class CLI
-    class InternalDump < AbstractInternalCommand
-      def initialize(*)
-        super
-        raise CaskUnspecifiedError if args.empty?
-      end
-
-      def run
-        casks.each(&:dumpcask)
-      end
-
-      def self.help
-        "dump the given Cask in YAML format"
-      end
-    end
-  end
-end