chamilo-lms/plugin/sepe/uninstall.php

<?php
/* For license 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.sepe
 */
require_once __DIR__.'/config.php';
SepePlugin::create()->uninstall();