What kind of profiles are they? If they are the new 'creative profiles' (with .XMP extension), then just right-clicking on them should give you a menu that includes deleting them. If they are custom camera profiles (.DCP extension), then there is a problem: it seems these cannot be deleted right now.
Sorry, but I don't work for Adobe. I do not keep lists of people I need to warn if something has changed. That is your own responsibility. What you can do is go to https://feedback.photoshop.com. Search for this bug and add your vote. You will then get noticed by Adobe when the bug is fixed.