removed the doctrine.orm.class_metadata_factory_name parameter

src/Symfony/Bundle/DoctrineBundle/DependencyInjection/Configuration.php

@@ -207,7 +207,7 @@ class Configuration implements ConfigurationInterface
                 ->append($this->getOrmCacheDriverNode('result_cache_driver'))
                 ->children()
                     ->scalarNode('connection')->end()
-                    ->scalarNode('class_metadata_factory_name')->defaultValue('%doctrine.orm.class_metadata_factory_name%')->end()
+                    ->scalarNode('class_metadata_factory_name')->defaultValue('Doctrine\ORM\Mapping\ClassMetadataFactory')->end()
                     ->scalarNode('auto_mapping')->defaultFalse()->end()
                 ->end()
                 ->fixXmlConfig('hydrator')

src/Symfony/Bundle/DoctrineBundle/Resources/config/orm.xml

@@ -25,7 +25,6 @@
         <parameter key="doctrine.orm.metadata.yml.class">Doctrine\ORM\Mapping\Driver\YamlDriver</parameter>
         <parameter key="doctrine.orm.metadata.php.class">Doctrine\ORM\Mapping\Driver\PHPDriver</parameter>
         <parameter key="doctrine.orm.metadata.staticphp.class">Doctrine\ORM\Mapping\Driver\StaticPHPDriver</parameter>
-        <parameter key="doctrine.orm.class_metadata_factory_name">Doctrine\ORM\Mapping\ClassMetadataFactory</parameter>
 
         <!-- cache warmer -->
         <parameter key="doctrine.orm.proxy_cache_warmer.class">Symfony\Bundle\DoctrineBundle\CacheWarmer\ProxyCacheWarmer</parameter>