diff --git a/lib/redmine/hook.rb b/lib/redmine/hook.rb
index 1db11dac6..83c9816b2 100644
--- a/lib/redmine/hook.rb
+++ b/lib/redmine/hook.rb
@@ -17,8 +17,6 @@
 
 module Redmine
   module Hook
-    #include ActionController::UrlWriter
-
     @@listener_classes = []
     @@listeners = nil
     @@hook_listeners = {}
@@ -88,7 +86,6 @@ module Redmine
       include ActionView::Helpers::FormTagHelper
       include ActionView::Helpers::FormOptionsHelper
       include ActionView::Helpers::JavaScriptHelper
-      #include ActionView::Helpers::PrototypeHelper
       include ActionView::Helpers::NumberHelper
       include ActionView::Helpers::UrlHelper
       include ActionView::Helpers::AssetTagHelper