VMware snapshots aren't cleaned up by VMware-Snapshot feature.

Originally reported in NAS-104116.

I'm sorry to report that it doesn't look like this is fixed. 

I updated to 11.3-RC1 when it was released and recreated my vmware snapshots. I didn't really think about it until a couple of my vm's started reporting their snapshot chains were to long. I confirmed that there were a boatload of snaps on the ESXi side.

Let me know if you need anything from me.

Note: it could be I'm just totally misunderstanding what this is supposed to be doing, but I think it's supposed to create a snapshot of a vm, snap the dataset, then clean up the vmware snapshot, right? If that's correct, then yeah this is still broken for me.

-Will