Use fosuser_registration directly instead of wallabag_user.registration_enabled

app/config/wallabag.yml

@@ -178,9 +178,6 @@ wallabag_core:
         -
             rule: _all ~ "https?://www\.lemonde\.fr/tiny.*"
 
-wallabag_user:
-    registration_enabled: "%fosuser_registration%"
-
 wallabag_import:
     allow_mimetypes: ['application/octet-stream', 'application/json', 'text/plain', 'text/csv']
     resource_dir: "%kernel.project_dir%/web/uploads/import"

src/Wallabag/ApiBundle/Controller/WallabagRestController.php

@@ -39,7 +39,7 @@ class WallabagRestController extends AbstractFOSRestController
         $info = [
             'appname' => 'wallabag',
             'version' => $this->container->getParameter('wallabag_core.version'),
-            'allowed_registration' => $this->container->getParameter('wallabag_user.registration_enabled'),
+            'allowed_registration' => $this->container->getParameter('fosuser_registration'),
         ];
 
         return (new JsonResponse())->setJson($this->get('jms_serializer')->serialize($info, 'json'));

src/Wallabag/UserBundle/Controller/RegistrationController.php

@@ -9,7 +9,7 @@ class RegistrationController extends FOSRegistrationController
 {
     public function registerAction(Request $request)
     {
-        if ($this->container->getParameter('wallabag_user.registration_enabled')) {
+        if ($this->container->getParameter('fosuser_registration')) {
             return parent::registerAction($request);
         }
 

src/Wallabag/UserBundle/Controller/SecurityController.php

@@ -14,7 +14,7 @@ class SecurityController extends FOSSecurityController
         return $this->render('FOSUserBundle:Security:login.html.twig',
             array_merge(
                 $data,
-                ['registration_enabled' => $this->container->getParameter('wallabag_user.registration_enabled')]
+                ['registration_enabled' => $this->container->getParameter('fosuser_registration')]
             )
         );
     }

src/Wallabag/UserBundle/DependencyInjection/Configuration.php

@@ -12,14 +12,6 @@ class Configuration implements ConfigurationInterface
         $treeBuilder = new TreeBuilder();
         $rootNode = $treeBuilder->root('wallabag_user');
 
-        $rootNode
-            ->children()
-                ->booleanNode('registration_enabled')
-                    ->defaultValue(true)
-                ->end()
-            ->end()
-        ;
-
         return $treeBuilder;
     }
 }

src/Wallabag/UserBundle/DependencyInjection/WallabagUserExtension.php

@@ -16,7 +16,6 @@ class WallabagUserExtension extends Extension
 
         $loader = new Loader\YamlFileLoader($container, new FileLocator(__DIR__ . '/../Resources/config'));
         $loader->load('services.yml');
-        $container->setParameter('wallabag_user.registration_enabled', $config['registration_enabled']);
     }
 
     public function getAlias()