diff --git a/app/models/cas_user_info.rb b/app/models/cas_user_info.rb
deleted file mode 100644
index 2366e3e3dab..00000000000
--- a/app/models/cas_user_info.rb
+++ /dev/null
@@ -1,27 +0,0 @@
-class CasUserInfo < ActiveRecord::Base
-  belongs_to :user
-end
-
-# == Schema Information
-#
-# Table name: cas_user_infos
-#
-#  id          :integer          not null, primary key
-#  user_id     :integer          not null
-#  cas_user_id :string(255)      not null
-#  username    :string(255)      not null
-#  first_name  :string(255)
-#  last_name   :string(255)
-#  email       :string(255)
-#  gender      :string(255)
-#  name        :string(255)
-#  link        :string(255)
-#  created_at  :datetime         not null
-#  updated_at  :datetime         not null
-#
-# Indexes
-#
-#  index_cas_user_infos_on_cas_user_id  (cas_user_id) UNIQUE
-#  index_cas_user_infos_on_user_id      (user_id) UNIQUE
-#
-
diff --git a/app/models/user.rb b/app/models/user.rb
index 540a320806f..3f06f1156a0 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -35,7 +35,6 @@ class User < ActiveRecord::Base
   has_one :facebook_user_info, dependent: :destroy
   has_one :twitter_user_info, dependent: :destroy
   has_one :github_user_info, dependent: :destroy
-  has_one :cas_user_info, dependent: :destroy
   has_one :oauth2_user_info, dependent: :destroy
   has_one :user_stat, dependent: :destroy
   belongs_to :approved_by, class_name: 'User'