I don't know why you would want to do that but it's not hard. Take the plastic panel off of the back of the trunk, find the trunk release solenoid and disconnect the ground wire. If you want to do the one that opens it from the passenger compartment, you may not be able to open it at all once you disconnect the mechanical cable.
Not sure about yours, mine requires the remote to open, backseats can't be removed now(unless you open the trunk, remove the setup, get a diegrinder and and grind off the welds, then there is whats behind the bottom of the rear seat...