Wikitree doesn't allow deletions (unless you have more authority than we do!!) ... ah, but you can get the same result by merging the 'anonymous' profile into one of your other profiles and basically not transferring any of anonymous' information.
Start the merge down in the lower left part of anonymous' profile 'initiate a merge' ... click on that and then enter the profile ID of who you want to merge into ... Francis' profile would work fine ... McCauley-765 ... you'll want to click on the 'Compare' button just to make sure you have the right profiles!! Then, click on the 'Merge Them' at the top of the page and proceed ... it's pretty easy.