Removing a video with a copyright strike does not remove the copyright strike at all, a copyright strike is different from a copyright claim, there are two options for copyright claims, first one is acknowledge the copyright and the second is if the video is blocked then you can delete it, if it is removed by Google/YouTube, you will have a copyright strike which will be removed after 6 months provided you gain no extra strikes.
I have one strike and removed the video, and I got a copyright claim and removed the video without a strike or further problem, but it seems to be affecting my Monetization, I am not getting Monetized on my new video's, even though none use copyright material and the restrictions on my account say that my videos are still illegible for Monetization, 6 months is a long way off before my account is in good standing again for longer video's, however my overall revenue is up from linking videos to my previous Monetized vids and Playlists.