don't erase the service account map for service hostnames with more than one port (#16769)
don't erase the service account map for service hostnames with more than one port (#16769)


smawson/istio,geeknoid/istio,smawson/istio,istio/istio,istio/istio,istio/istio,smawson/istio,smawson/istio,geeknoid/istio,geeknoid/istio,geeknoid/istio,geeknoid/istio,smawson/istio,smawson/istio,istio/istio,istio/istio,geeknoid/istio