Yep, this worked for me --
I used vim-cmd to get all vms and identified the two I needed to get rid of
$ vim-cmd vmsvc/getallvms
the two that I had that were orphaned were at the very top
I edited the vmInventory.xml file
$ vi /etc/vmware/hostd/vmInventory.xml
(use dd to delete a line at a time, :wq to exit and save, :!q to exit without saving)
I then reset these two services:
$ /etc/init.d/hostd restart
$/etc/init.d/vpxa restart
then reloaded the web UI and they were gone. Hope this helps someone else.