CTaskFilterCtrl::removeArrayKeyRecursively

static function removeArrayKeyRecursively($ar, $dropKey)
{
	if (is_array($ar))
	{
		if (array_key_exists($dropKey, $ar))
			unset($ar[$dropKey]);

		foreach(array_keys($ar) as $k)
			$ar[$k] = self::removeArrayKeyRecursively($ar[$k], $dropKey);
	}

	return ($ar);
}