Macau Bluecard cancellation

I was issued a bluecard which is due to expire in March. On my passport, it also showed that I have permission to stay until March. Since I am no longer there in Macau, I would like to know if there is anything I need to do to get this revoked since I have no plans in going back anytime soon. Since  I do not want to have this affect my future tavel plans to China, I would like to get your advice if there is anything I need to do, should I let it expire and do nothing? or should I go the China Embassy and surrender my bluecard?