Refactor: Move recipients method into acts_as_event

acts_as_event should be the standard interface to Redmine events, like mail
notifications, so having a standard recipients implementation there makes sense.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@3358 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/document.rb

@@ -46,11 +46,4 @@ class Document < ActiveRecord::Base
     end
     @updated_on
   end
-  
-  # Returns the mail adresses of users that should be notified
-  def recipients
-    notified = project.notified_users
-    notified.reject! {|user| !visible?(user)}
-    notified.collect(&:mail)
-  end
 end