public function disable()
{
$language = new Language($this->config);
$layout_strings = $language->getFile('administrator/layout.php');
unset($layout_strings['module_exchange_rates']);
$language->updateFile('administrator/layout.php', $layout_strings);
// Remove some menu items to the admin menu
$main_menu = new Menu($this->config, $language);
$main_menu->loadMenu('menu_admin_main.php');
$menu = $main_menu->getMenuData();
unset($menu['content']['children']['exchange_rates']);
$main_menu->setMenuData($menu);
$main_menu->update();
}