chamilo-lms/plugin/ticket/uninstall.php

<?php
/* For licensing terms, see /license.txt */

/**
 * This script is included by main/admin/settings.lib.php when unselecting a plugin
 * and is meant to remove things installed by the install.php script in both
 * the global database and the courses tables
 * @package chamilo.plugin.ticket
 */
require_once dirname(__FILE__).'/config.php';
TicketPlugin::create()->uninstall();