This is not accurate.
If you delete it then no harm done, you will need to restore the objects by running the tasks in the guide.

Please consider modifying 5.5.3. Backing up zync-database too.
It should be optional (or just remove the section to simplify).

Reported by: rhn-support-tkonishi

https://access.redhat.com/documentation/en-us/red_hat_3scale_api_management/2.7/html/operating_3scale/backup-restore#annotations:0804e66d-f2fd-4325-a6a4-bc3792ba46dc
https://access.redhat.com/documentation/en-us/red_hat_3scale_api_management/2.8/html/operating_3scale/threescale-backup-restore#defining-zync-database