That could be obtained with breeding either rex females to get the "hairless" double rex, or with true hairless carrier females to a hairless male. But, other than production issues, are there any reasons to feed hairless or any reasons not to?
Lots of people have rex/wavy rats, its very common, but if your talking true hairless, no, it's not preferred, and there is no reason to concentrate on breeding hairless feeders for snakes. There just isn't any reason to prefer it nutrition wise.