Hi
Let's assume your access-list for the old outside interface was called outside_in, on cli you have a command on the show run that's:
access-group outside_in in interface outside
You can delete this entry (not the access-list) just this line acces-group and attach to the new interface like:
access-group outside_in in interface outside2
Hope this answered your question.
Thanks
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Thanks
Francesco
PS: Please don't forget to rate and select as validated answer if this answered your question