First try to remove the hoses with your hand, if that fails go to adjustable pliers. The machine and drain hose may still contain some water. If you place the drain hose by a floor drain or into a bucket, you can allow any access water to drain out. You'll appreciate the lesser weight and mess, when removing the old machine. Before bringing the new machine in, clean up and inspect the floor under the old unit.
Unstable flooring can lead to extensive internal suspension damage to the new washer.
If necessary, strengthen the flooring with added joist bracing or an additional plywood sheet. Bring the new unit in and slide it into the approximate position you want. It is important to note here that NEW fill hoses should be used to minimize the chance of bursting due to age. Most new machines come with new hoses and hose washers but braided stainless steel lines are available separately if you prefer. Place the end of the drain hose in the standpipe or over the edge of the basin and secure them in place.