How to remove inactive apple ID

Remove it from what? The easiest way to remove it is to make it active and then sign out normally. You might be able to request access to your account by tapping Request Access right from the alert. If that does not work, this link (versus one taking you to the general support page) is the most direct way to get to the people helping you with this —> https://getsupport.apple.com/?PGF=PGF63005&category_id=SC0245&symptom_id=23626

or by telephone at one of the numbers in this support article --> Contact Apple for support and service - Apple Support