removing them
How? There is a shortcut for manual removal.
That’s the exhaustive description. In essence, you drag-select the bad sound and through a magic keystroke, paste over it with well-behaved background sound (or whatever you choose).
I don’t know of any completely automated way to do that. That job falls into the category of “[X] remove everything I don’t want”.
be able to generate levels that work for ACX Check.
What does that mean? Nobody can announce directly into ACX. The best you can do is announce loud enough to overcome noises and then use Mastering tools to go the rest of the way. Is that what you’re doing? We may be able to save you some work.
Koz