Remove unused use statements on system/Common.php

Author: samsonasik

system/Common.php

@@ -25,9 +25,7 @@
 use CodeIgniter\HTTP\IncomingRequest;
 use CodeIgniter\HTTP\RedirectResponse;
 use CodeIgniter\HTTP\RequestInterface;
-use CodeIgniter\HTTP\Response;
 use CodeIgniter\HTTP\ResponseInterface;
-use CodeIgniter\HTTP\URI;
 use CodeIgniter\Model;
 use CodeIgniter\Session\Session;
 use CodeIgniter\Test\TestLogger;