health: Don't count hypervisors if no affinity is enforced
health: Don't count hypervisors if no affinity is enforced

If no affinity-hosts is enforced, we shall not fail because the number
of expected HV isn't match.

lebauce/edeploy,redhat-cip/edeploy,lebauce/edeploy,lebauce/edeploy,redhat-cip/edeploy,enovance/edeploy,enovance/edeploy,redhat-cip/edeploy,lebauce/edeploy,redhat-cip/edeploy,enovance/edeploy,enovance/edeploy