diff --git a/app/controllers/comments_controller.rb b/app/controllers/comments_controller.rb
index 5180f94d6..c1357d064 100644
--- a/app/controllers/comments_controller.rb
+++ b/app/controllers/comments_controller.rb
@@ -42,21 +42,6 @@ class CommentsController < ApplicationController
         ids = params[:asset_id].split(',')
         update_kindeditor_assets_owner ids,@comment.id,OwnerTypeHelper::COMMENT
       end
-      # # ������ض�̬�ļ�¼add start
-      # if( @comment.id && @news.course )
-      #   if(@news.author_id != User.current.id)
-      #     notify = ActivityNotify.new()
-      #     notify.activity_container_id = @news.course.id
-      #     notify.activity_container_type = 'Course'
-      #     notify.activity_id = @comment.id
-      #     notify.activity_type = 'Comment'
-      #     notify.notify_to = @news.author_id
-      #     notify.is_read = 0
-      #     notify.save()
-      #   end
-      # end
-      # # ������ض�̬�ļ�¼add end
-      #flash[:notice] = l(:label_comment_added)
       update_course_activity(@news.class,@news.id)
       update_user_activity(@news.class,@news.id)
       update_org_activity(@news.class,@news.id)