diff --git a/railties/lib/rails/engine/railties.rb b/railties/lib/rails/engine/railties.rb
index <HASH>..<HASH> 100644
--- a/railties/lib/rails/engine/railties.rb
+++ b/railties/lib/rails/engine/railties.rb
@@ -16,8 +16,6 @@ module Rails
       def -(others)
         _all - others
       end
-
-      delegate :engines, to: "self.class"
     end
   end
 end
Remove unused delegate

Related with commit 4a2a<I>