Just a quick confirmation I have to get out my ZW stick again. 
These 2 Minimotes would now delete the proper way so I had to just delete them.
Sometime Refresh or Discover will pop up with a Delete option change but it seems no-go on that luck.
ZW stick again I guess? It’s so messy but at least I have it installed, software wise.
Happy times.
I refreshed the whole ZW network and one showed up as communicating still.
Other one didn’t and I still couldn’t exclude the devices but the back of the brain had a niggle that I pressed the Join (one one) and Learn (on the other) years ago for something.
The both excluded right away. 
Another option when stuck is to switch to z-wavejs, do a full power cycle, then remove the nodes. Then revert back to z-wave
I believe @dnickel is already running Zwave JS full time, indicated by the lack of "Route Changes" info on the zwave details.
Zwave JS, while good at removing mains powered ghosts, the last time I tried it refused to even give me the option to remove a battery powered node. No amount of refreshing it would make it work (even when device had been offline for weeks). After bumping my bug report multiple times I gave up reporting it.
Beta Post: https://community.hubitat.com/t/2-4-4-zwave-js-sleepy-devices-never-go-pending/162120
Just tried again on 2.5, refreshing the ZEN37 node that has been factory reset for months at this point. It still does not give me an option to remove the node....

Me too, only with two LW battery sensors: