Remove unused params

Author: AydinHassan

examples/confirm-cancellable.php

@@ -6,7 +6,7 @@
 require_once(__DIR__ . '/../vendor/autoload.php');
 
 $itemCallable = function (CliMenu $menu) {
-    $continue = $menu->cancellableConfirm('PHP School FTW!', null, true)
+    $continue = $menu->cancellableConfirm('PHP School FTW!')
         ->display('OK', 'Cancel');
 
     if ($continue) {