Remove userid provider configuration; handled in zf-oauth2

Author: TomHAnderson

README.md

@@ -37,17 +37,6 @@ Configuration
 
 Copy ```config/oauth2.doctrine-orm.global.php.dist``` to your autoload directory and rename to ```oauth2.doctrine-orm.global.php``` You will need to edit this file with at least your User entity, which is not provided.
 
-If you are using zf-oauth2 you will want to change the UserId Provider by adding this section to your config:
-
-```
-    'service_manager' => array(
-        'aliases' => array(
-            'ZF\OAuth2\Provider\UserId' => 
-                'ZF\OAuth2\Provider\UserId\AuthenticationService',
-        ),
-    ),
-```
-
 
 The User Entity
 --------------