Feature request: option to remove someone from the contributor list

In one of my projects I was testing out something and used BeginCI and it directly commited to my project and is now listed on the overview page as a Contributor. Although I reverted the commit and don’t really use anything from this “contributor”.
Therefore it would be great to have some option to remove someone as a contributor. For bots / services in my case this could be done with a simple confirm check, for actual human accounts this could either be forbidden or there could be a request button to send a removal request to GitHub.