Removed annoate and hirb Gemfiles.

Annotate: Better look in schema.rb, this reference should be always up
to date.

Hirb: To reactivate hirb, look in railscasts:
http://railscasts.com/episodes/48-console-tricks-revised

app/models/group_order_article.rb

@@ -181,16 +181,3 @@ class GroupOrderArticle < ActiveRecord::Base
 end
 
 
-# == Schema Information
-#
-# Table name: group_order_articles
-#
-#  id               :integer(4)      not null, primary key
-#  group_order_id   :integer(4)      default(0), not null
-#  order_article_id :integer(4)      default(0), not null
-#  quantity         :integer(4)      default(0), not null
-#  tolerance        :integer(4)      default(0), not null
-#  updated_on       :datetime        not null
-#  result           :decimal(8, 3)
-#
-