IOC status calculation change
The IOC metrics business logic has been changed - if IOC is stopped, it's metrics will be removed from the Prometheus response. Therefore:
- if IOC is not deployed (host or deployed time empty) -> IOC is inactive
- if IOC metrics found in Prometheus -> return that
- if no IOC metric found, that means either the IOC is stopped or host is down, so checking the host metrics also
Additionally removed unused metrics to clean up the codebase a bit
Closes CE-3134