Not an exact answer for you, but it will work fine for a track condition (lower range requirement than bashing). I've done the same to one of my rx-461 and I only had about 1cm of wire left, still worked as if nothing happened.

Cautionary tale...I then tried to repair the wire...I can no longer use that receiver.

So, just leave it as is. You'll most likely be fine. I certainly didn't notice any drop off in response rate.