public function deleteGoal($idSite, $idGoal)
{
Piwik::checkUserHasAdminAccess($idSite);
$this->getModel()->deleteGoal($idSite, $idGoal);
$this->getModel()->deleteGoalConversions($idSite, $idGoal);
$this->getGoalsInfoStaticCache()->delete(self::getCacheId($idSite));
Cache::regenerateCacheWebsiteAttributes($idSite);
}