Should I bring up minor writing errors that I noticed after submitting revised version?
You should ask the editor who approved your paper about what to do. Resubmitting a new version might speed up their process or might make no matter. And, not all journals/conferences will have a copy editing phase in any case. 

But leaving it unstated is just sloppy work and if it is recognized you might actually face rejection since the acceptance seems to have been conditional. Make your best effort.