chore: improve form layout and feedback for driver license check

src/Controller/Teamer/Check/DriverLicenseController.php

@@ -141,7 +141,5 @@ class DriverLicenseController extends AbstractController
 
         $this->uploadHandler->moveUploadSessionFilesFromOrphanage(Upload::TYPE_DRIVER_LICENSE, $uploadSession);
         $this->uploadHandler->destroyUploadSession();
-
-        $this->addFlash('success', 'Der Führerschein wurde hochgeladen.');
     }
 }