Deleted GET from admin_statistics

admin_statistics.php

@@ -20,7 +20,7 @@ if (!$pun_user['is_admmod'])
 // Load the admin_index.php language file
 require PUN_ROOT.'lang/'.$admin_language.'/admin_index.php';
 
-$action = isset($_GET['action']) ? $_GET['action'] : null;
+$action = $container->get('Request')->getStr('action', '');
 
 
 // Show phpinfo() output