I know this is from a long time ago, but in case anyone is still looking for a solution, I ended up using a regex in the metadata correction options in MCEBuddy to resolve this. I’m not that good at regex, but this pattern seems to match and strip out the year if there is one.
Original Title: regex:([\w\s]+) \(\d\d\d\d\)
Corrected Title: regex:$1