Remove Symfony 6.2+ comment

Author: smnandre

src/Turbo/doc/index.rst

@@ -378,7 +378,6 @@ Let's discover how to use Turbo Streams to enhance your `Symfony forms`_::
                 return $this->redirectToRoute('task_success', [], Response::HTTP_SEE_OTHER);
             }
 
-            // Symfony 6.2+
             return $this->render('task/new.html.twig', [
                 'form' => $form,
             ]);