From ESPHome, I can’s delete it anymore as it’s already gone.
From HA Devices, I can’t find any delete button
From HA Devices, I could not remove any entities (but greyed out), but was able to disable them.
But, ok, disabled all of it, including the device.
I showed a dialog (yes/no) to also disable something else (cant remember), but the device will not really be disabled. Could press that button/dialog multiple times.
No I decided to reboot, after I disabled all sensors/entities (one of them was Unify tracker that was still working?). After the reboot the error message in the log is gone but the device is still there…
Unfortunately it is not listed there anymore…
After some reboots, after disabling all related entities, I was able to disable the device.
So at least no errors anymore.
Still, not possible to completely remove it.
I might be better to first remove it from HA, then from ESPhome?