Glenn,
I have never honestly seen that before, but that does not look like HCX to me and if it was HCX its not up and functioning. HCX will have the main appliance, and then depending on what you deploy, a IX, NE and maybe a WAN optimizer VM, so there would be more VMs there tied to HCX since to migrate VMs you would need the IX appliance and for network extension you would need the NE appliance with the WANOP being optional. My guess is that was your data collector proxy for Aira, although I have not clue why it would still be there for a dead product, but maybe there might have been something Broadcom wanted you to do before the product was killed off?
But yes, I would open a ticket and have them remove it since its not doing anything. Hope this helps.