Jeebus, check your facts. Wakefield, as is normal for a doctor, didn't have a PhD, but a bachelorship in surgery and medicine. He did have a fellowship of the royal college of surgeons, but that's not an academic qualification.
What happened to Wakefield - for his fraud and ethical lapses - was that he was struck off the medical register, and so was no longer able to practice medicine in the UK.
I'm not entirely sure that there is any procedure by which an earned PhD can be removed from someone. Honorary doctorates on the other hand, can be retracted, and have been. but that's not the case here.
Sure, Wakefield was - and presumably remains - a sleazebag and is practising medicine in the USA as I understand things. But to the best of my knowledge he retains his PhD. I would be very surprised if the RCS had allowed him to remain a fellow, and it's possible that his proposer and seconder could have had a bollocking over not spotting that he was an unprincipled bounder and a cad and an unfit mother. But with 13 years between joining and going into the fraud business, they're probably not really deserving of blame.