Does anyone know of a way to remove the UPS Priority Mail "1 Day, 2 Day, 3 Day" that comes up when a customer places an order with the current version of sunshop 4.5.4-1?

We had someone modify the "include/shipping/usps.php" file in a previous version and it worked but we were moved to a new server and had to upgrade to the new version of sunshop and it is back to showing customers "1 Day, 2 Day, 3 Day" on their orders and we are getting complaints again because the customer thinks they paid extra for faster shipping.