Remove extra docblock

Author: SerafimArts

tests/TestCase.php

@@ -1,12 +1,5 @@
 <?php
 
-/**
- * This file is part of FFI package.
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
 declare(strict_types=1);
 
 namespace FFI\Env\Tests;