What's the easiest way to remove the power rails of a breadboard?
Cut away, rip the adhesive off, get some kapton tape off of ebay to replace it. Kapton tape is great stuff, has a resistance that is second only to teflon (at least on my list, don't get all technical on me). If you don't like that, I have seen places in the past where you can buy a 2x~40 strip of breadboard that was a few years ago though.