1 files changed, 0 insertions, 10 deletions
diff --git a/lib/arel/algebra/extensions/class.rb b/lib/arel/algebra/extensions/class.rb
index d005814f91..520111b90f 100644
--- a/lib/arel/algebra/extensions/class.rb
+++ b/lib/arel/algebra/extensions/class.rb
@@ -25,16 +25,6 @@ module Arel
       }
       class_eval methods[method_name], __FILE__, __LINE__
     end
-
-    def hash_on(delegatee)
-      define_method :eql? do |other|
-        self == other
-      end
-
-      define_method :hash do
-        @hash ||= delegatee.hash
-      end
-    end
     
     Class.send(:include, self)
   end