Removed handler/GetHelp, cause it is unused

~dev_rating/application/classes/Controller/Handler/GetHelp.php

-<?php defined('SYSPATH') or die('No direct script access.');
-
-class Controller_Handler_GetHelp extends Controller
-{
-    public function action_indexStudent() {
-        $twig = Twig::factory('text_content/indexStudent');
-        $this->response->body($twig);
-    }
-}
\ No newline at end of file