style: apply Moodle coding standards

classes/event/backup_performed.php

@@ -24,8 +24,6 @@
 
 namespace local_webhooks\event;
 
-defined('MOODLE_INTERNAL') || die();
-
 use core\event\base;
 use lang_string;
 use moodle_url;
@@ -72,4 +70,4 @@ class backup_performed extends base {
         $this->data['edulevel'] = self::LEVEL_OTHER;
         $this->data['objecttable'] = 'local_webhooks_service';
     }
-}
+}