R1:bc0963d54b1c

Remove rows for personal saved builtin queries

Summary:
Ref T12956. After this change, individual users will no longer be able to modify builtin queries on a user-by-user basis: they will always appear at the bottom of the list, under their personal queries, and can only be managed by administrators.

To support this, clean up the old rows which could be hanging around from before: delete any personal saved queries where the saved query is a builtin query.

To ease this transition, try to pin the query…