1.Take a deep breath.
2.Go to your profile.
3.Click on "fans"
4.Find whoever fan you want to delete.
5.There should be a little x next to that username
6.Click ONLY ON THE X
7.It should say "delete fan" or something like that.
8.I think that's it...but there is a really good chance I could be wrong.
9.Release the breath from Step 1.