/**
 * On deactivation, flush the rewrite rules so XML sitemaps stop working.
 */
function _wpseo_deactivate()
{
    require_once WPSEO_PATH . 'inc/wpseo-functions.php';
    add_action('shutdown', 'flush_rewrite_rules');
    wpseo_remove_capabilities();
    // Force unschedule
    WPSEO_Utils::schedule_yoast_tracking(null, get_option('wpseo'), true);
    // Clear cache so the changes are obvious.
    WPSEO_Utils::clear_cache();
    do_action('wpseo_deactivate');
}
 /**
  * (Un-)schedule the yoast tracking cronjob if the tracking option has changed
  *
  * @deprecated 1.5.6.1
  * @deprecated use WPSEO_Utils::schedule_yoast_tracking()
  * @see        WPSEO_Utils::schedule_yoast_tracking()
  *
  * @param  mixed $disregard        Not needed - passed by add/update_option action call
  *                                 Option name if option was added, old value if option was updated
  * @param  array $value            The (new/current) value of the wpseo option
  * @param  bool  $force_unschedule Whether to force an unschedule (i.e. on deactivate)
  */
 public static function schedule_yoast_tracking($disregard, $value, $force_unschedule = false)
 {
     _deprecated_function(__METHOD__, 'WPSEO 1.5.6.1', 'WPSEO_Utils::schedule_yoast_tracking()');
     WPSEO_Utils::schedule_yoast_tracking($disregard, $value, $force_unschedule);
 }