DiscountCouponTable::deleteByDiscount

static function deleteByDiscount($discount)
{
	$discount = (int)$discount;
	if ($discount <= 0)
		return;
	$conn = MainApplication::getConnection();
	$helper = $conn->getSqlHelper();
	$conn->queryExecute(
		'delete from '.$helper->quote(self::getTableName()).' where '.$helper->quote('DISCOUNT_ID').' = '.$discount
	);
	unset($helper, $conn);
}