Remove trailing whitespace and tabs

app/models/tagging.rb

@@ -2,16 +2,16 @@
 # The Tagging join model.
 
 class Tagging < ActiveRecord::Base
-   
+
   belongs_to :tag
   belongs_to :taggable, :polymorphic => true, :touch => true
-  
+
   after_destroy :delete_orphaned_tag
-  
+
   private
-      
+
   def delete_orphaned_tag
     tag.destroy if tag and tag.taggings.count == 0
   end
-  
+
 end