Removed c3 code from test app

Author: Naktibalda

tests/data/app/index.php

@@ -1,12 +1,5 @@
 <?php
 if (!headers_sent()) header('Content-Type: text/html; charset=UTF-8');
-require_once __DIR__.'/../../../autoload.php';
-
-if (file_exists(__DIR__ . '/../sandbox/c3.php')) {
-    require __DIR__ . '/../sandbox/c3.php';
-} else {
-    require __DIR__ . '/../claypit/c3.php';
-}
 
 require_once('glue.php');
 require_once('data.php');