Thanks for reaching out to the Apple Support Communities.
I see that you've shared your location with someone and you no longer want that person on the shared list. It's important to make sure that you can stop sharing with people if you want, so I'm happy to provide some help.
If you need to remove someone from Find My Friends so they won't see your location, simply open the Find My Friends app and swipe left on the friend. Then, tap the delete (Trash) button.
You also can hide from followers and stop sharing your location altogether. For more information on that, please see the steps in this support article: About Find My Friends .
Let me know if you have any questions.