removed GNU license

cleaned op the code by removing the GNU license

samples/transaction/start-minimum.php

@@ -1,20 +1,5 @@
 <?php
-/*
- * Copyright (C) 2015 Andy Pieters <[email protected]>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
+
 
 require_once '../../vendor/autoload.php';
 require_once '../config.php';