fix: code review

fix #5459 (comment)

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>

Author: vitormattos

lib/Service/IdentifyMethod/TwofactorGateway.php

@@ -64,9 +64,7 @@ public function isTwofactorGatewayEnabled(): bool {
 		/** @var Factory */
 		$gatewayFactory = Server::get(Factory::class);
 
-		$full = get_class($this);
-		$parts = explode('\\', $full);
-		$gatewayName = end($parts);
+		$gatewayName = strtolower($this->getId());
 
 		$gateway = $gatewayFactory->get($gatewayName);
 		return $gateway->isComplete();