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/order_comment.rb

@@ -7,14 +7,3 @@ class OrderComment < ActiveRecord::Base
   validates_length_of :text, :minimum => 3
 end
 
-# == Schema Information
-#
-# Table name: order_comments
-#
-#  id         :integer(4)      not null, primary key
-#  order_id   :integer(4)
-#  user_id    :integer(4)
-#  text       :text
-#  created_at :datetime
-#
-