delete useless variable in link widget controller

vendor/built_in_modules/web_resource/app/controllers/panel/web_resource/widget/web_links_controller.rb

@@ -27,10 +27,6 @@ class Panel::WebResource::Widget::WebLinksController < OrbitWidgetController
 
     @widget_style = @part.widget_style
 
-    @category_id = @part.category
-
-    date_now = Time.now
-
     if !params[:category_id].blank?
       @web_link_categorys = @module_app.categories.enabled.any_in(:_id => params[:category_id])
     else
@@ -63,7 +59,7 @@ class Panel::WebResource::Widget::WebLinksController < OrbitWidgetController
       end
 
       @web_link_datas << { "title" => wlcg.title, "web_links" => web_link_datas } if !@web_links.blank?
-
+ 
     end
 
   end