fix(encryption): Simplify evaluation in AppConfigController

Co-authored-by: Louis <louis@chmn.me>
Signed-off-by: Stephen Cuppett <steve@cuppett.com>

Author: cuppett

apps/provisioning_api/lib/Controller/AppConfigController.php

@@ -203,8 +203,7 @@ protected function verifyConfigKey(string $app, string $key, string $value) {
 			throw new \InvalidArgumentException('The given key can not be set');
 		}
 
-		if ($app === 'core' && $key === 'encryption_enabled'
-			&& !in_array(strtolower(trim($value)), ['yes', '1', 'true', 'on'], true)) {
+		if ($app === 'core' && $key === 'encryption_enabled' && $value !== 'yes') {
 			throw new \InvalidArgumentException('The given key can not be set');
 		}