Remove read-only entities?

So I’ve rebuilt my z-wave environment by removing and re-adding the Z-Wave integration. I was prompted that doing so will remove ALL devices & entities. Well, it turns out that’s NOT the case. When I go to Configuration/Entities, I’m still seeing a ton of old entities from the previous controller/integration that are now marked as Read-only and I can’t delete them! And now, when I try to recreate a device using the same name, it set it with underscores!! How do I properly clean my HA environment by getting rid of the old read-only entities?

Any thoughts on removing these entities? There’s got to be a recommended way to clean up old/unused entities.

You ever get any feedback on this, in a similar situation

Not really. I think after I rebooted HA several times, the old entities went away.