How to remove Cloud Sync from plex, after plexpass subscription is over?

Hi
I had a plexpass subscription a few years before. Then, I had synced some content to my dropbox account. However, since my subscription has ended, I can see cloud sync as a server (I can play the media too), but I can't delete it, because I have not that option, due to the lack of an active plexpass. ¿How should I delete Cloud Sync server?
Thanks in advance, and forgive my english.