Removed the require statements for Mockery and Hamcrest (let composer…

… handle the loading)

PHPUnit/Extensions/Mockery/TestCase.php

@@ -1,8 +1,5 @@
 <?php
 
-require_once 'Mockery/Loader.php';
-require_once 'Hamcrest/Hamcrest.php';
-
 $loader = new \Mockery\Loader();
 $loader->register();
 
@@ -74,4 +71,4 @@ private function parseAnnotations($docblock) {
 
         return $annotations;
     }
-}
+}