fix: delete unique-db patch

This was supposed to be removed in #5519

Looks like I didn't update the series or actually delete the patch.

Author: jsjoeio

patches/series

@@ -10,7 +10,6 @@ logout.diff
 store-socket.diff
 proxy-uri.diff
 github-auth.diff
-unique-db.diff
 log-level.diff
 local-storage.diff
 service-worker.diff