Do not worry. No need to do anything!!!!!!!

When I applied for OPT, i got one A# from TSC. When I ted my 485, I got a new A# from another cebter associated with my 485 application. I did reveal the old A# on either my 10 or 485 applications where required.

I think only the new A# associated with your 485 application will be used for your green card registration.

Put your heart to where it was. Take it easy.