google/google-api-php-client — pull request #357 by murgatroid99 (2014-10-16 19:53:10+00:00)
Title: Removes non-functional AppIdentity auth.

Line 83 of Google_Auth_AppIdentity references a non-existent class
member, which makes the class non-functional. This implies that the
nobody uses the class and that it is safe to remove.