erm I spend quite some time with vmglob in the 5.x days did not know it's still a thing in 7.x
Did you try to unload the EMM and grep it to find out which table these items are in?
This could suggest the method of deletion.
When you say you want to delete device, but there is no host information, what exactly do you mean, has the media server been removed ?
Does any command show the drive details, run from th emedia server the drive is connected to if it is still available.
If tpconfig -d shows the drives you wish to delete, and you can see the drive index (the number on the left or each drive) you can try:
tpconfig -delete -drive <drive index>