neon-system-db grows without bounds

[marcusbooyah]

This is the neon-system-db volume. It can probably be pruned.

root@control-0:/home/sysadmin# du /var/openebs/local -h --max-depth=1
98G	/var/openebs/local/pvc-874c36cc-cd02-41c4-a7bf-e3c3921fed73
99G	/var/openebs/local
root@control-0:/home/sysadmin#