Add SITE_URL constant.

config.php

@@ -1,10 +1,10 @@
 <?php
-
 define('dbhost', 'localhost');
 define('dbname', '');
 define('dbuser', '');
 define('dbpass', '');
 
+define('SITE_URL', '');
 
 define('ROOT_DIR', __DIR__);
 ?>

src/Libs/Router.php

@@ -13,8 +13,6 @@
 
 namespace Libs;
 
-use Libs\Request;
-
 class Router {
   private static $get = [];
   private static $post = [];