I might be misinterpreting this, but my understanding was that the flight control laws relate only to the function of the flight computers which take pilot input and translate into physical movement of the flight controls. In your case, provided all computers stayed online, the law shouldn't change because despite the fact that the computers have less toys to play with, they are still functioning correctly. If one were to be taken offline, then a change in law would be expected. I'm just guessing here, not an expert by any means.