Fix Error: Undefined index: redirect_url

Signed-off-by: Andy Xheli <axheli@axtsolutions.com>

Should fix Undefined index: redirect_url at core/templates/twofactorsetupselection.php #21968

core/templates/twofactorsetupselection.php

@@ -33,7 +33,6 @@ declare(strict_types=1);
 			   href="<?php p(\OC::$server->getURLGenerator()->linkToRoute('core.TwoFactorChallenge.setupProvider',
 								[
 									'providerId' => $provider->getId(),
-									'redirect_url' => $_['redirect_url'],
 								]
 							)) ?>">
 				<?php