Remove missing association of repo_assignments from User model.

Author: baxter2

app/models/user.rb

@@ -14,7 +14,6 @@ class User < ActiveRecord::Base
   # Setup accessible (or protected) attributes for your model
 
   has_many :repo_subscriptions, dependent: :destroy
-  has_many :repo_assignments, through: :repo_subscriptions
   has_many :repos, through: :repo_subscriptions
 
   has_many :issue_assignments, through: :repo_subscriptions