Optimize profile store api delete requests

When working with profile store, there are times that profiles needs to be deleted. At the moment it is only possible to delete them one by one, and the time that request takes is depending on how many profiles the store contain, and how active a visitor has been. If a user is tracked, and one day (by tracking consent or other reason) decides to not to be tracked, we need to remove that user from profile storage.

It would be great if the removal could be done in batches and the removal could be optimized so the request wouldn't take so long (still depends on how many visitors that exists and how active they have been). Keeping a profile storage up to date with visitors that only allow themselves to be tracked is an important issue.