Merge pull request rails#13273 from robertomiranda/test-remove-require

Remove require 'models/administrator', Administrator is not used in secure password test

Author: guilleiguaran

activemodel/test/cases/secure_password_test.rb

@@ -2,7 +2,6 @@
 require 'models/user'
 require 'models/oauthed_user'
 require 'models/visitor'
-require 'models/administrator'
 
 class SecurePasswordTest < ActiveModel::TestCase
   setup do