Remove from sitemap all posts with specific tag

This is a special use case. Not sure if there’s a way of doing this but it would be helpful. Even if it meant hacking some code.

We have a specific tag that we use on posts where we want to noindex them. We did this as an alternative to going in and noindexing a lot of posts manually. And to make sure any future posts with this tag was also noindexed.

We’d like to remove these posts from the sitemap. Any way of doing that? Some kind of function that tells AIO to not include in the sitemap any post with a specific tag?