Remove mentions of logout controllers being useless

Author: MatTheCat

security.rst

@@ -1890,32 +1890,10 @@ Otherwise, you can enable this behavior yourself by importing the
 
 Another option is to configure ``path`` as a route name, which can be useful if
 you want logout URIs to be translated according to the current locale e.g.
-In that case, you have to create this route yourself.
-Note that it doesn't need a controller, because it wouldn't be called anyways:
+In that case, you have to create this route yourself:
 
 .. configuration-block::
 
-    .. code-block:: php-attributes
-
-        // src/Controller/SecurityController.php
-        namespace App\Controller;
-
-        use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
-        use Symfony\Component\Routing\Annotation\Route;
-
-        class SecurityController extends AbstractController
-        {
-            #[Route([
-                'en' => '/logout',
-                'fr' => '/deconnexion'
-            ], name: 'app_logout', methods: ['GET'])]
-            public function logout(): never
-            {
-                // controller can be blank: it will never be called!
-                throw new \Exception('Don\'t forget to activate logout in security.yaml');
-            }
-        }
-
     .. code-block:: yaml
 
         # config/routes.yaml