I had removed them for you, but please keep in mind, those profiles listed under the "Pending Merges", "Unmerged Matches" & "Rejected Matches" will have the following 3 options...
[compare] [reject] [remove]
... and they're actually individual links that will begin those processes as reflected by those words.
I just selected the [remove] option that takes you to a page to confirm if that's the option you want. On that page, I just selected the confirmation button and it was done.
If you require further information regarding this topic, please take a look at the following WikiTree Help link that should (hopefully) answer your questions.
I hope that I had explained this okay via text... :-)