Remove outdated parts of the doc

Author: GuilhemN

DependencyInjection/Configuration.php

@@ -296,10 +296,6 @@ private function addFormatListenerSection(ArrayNodeDefinition $rootNode)
                         })
                     ->end()
                     ->canBeEnabled()
-                    ->validate()
-                        ->ifTrue(function ($v) { return empty($v['rules']) && !empty($v['media_type']['enabled']); })
-                        ->thenInvalid('To enable the "media_type" setting, a "rules" setting must also needs to be defined for the "format_listener"')
-                    ->end()
                     ->children()
                         ->scalarNode('service')->defaultNull()->end()
                         ->arrayNode('rules')

Resources/doc/configuration-reference.rst

@@ -68,7 +68,6 @@ Full default configuration
                 service:              null
             failed_validation:    400
             empty_content:        204
-            exception_wrapper_handler:  null
             serialize_null:       false
             jsonp_handler:
                 callback_param:       callback
@@ -114,10 +113,6 @@ Full default configuration
                 fallback_format:      html
                 attributes:           []
                 priorities:           []
-            media_type:
-                enabled:              false
-                service:              null
-                version_regex:        '/(v|version)=(?P<version>[0-9\.]+)/'
         versioning:
             enabled: false
             default_version: ~