Deleting orphaned services support

[man0s]

When enabling or disabling HA for a service on a running Spinnaker, Halyard will not clean up the old service(s) by default. This means that if a non-HA Clouddriver is running (for example) and Spinnaker is then deployed with HA Clouddriver enabled, the non-HA Clouddriver will still be running, even though it is no longer used. To clean up these orphaned services, add a --delete-orphaned-services flag to hal deploy apply as stated here.

I've searched the documentation, but I haven't found the above flag/option in the Spinnaker operator configuration.
Is there a way to achieve the same behavior through the Operator?

[sh4sh]

Operator still runs halyard under the hood! I haven't tested this particular flag but it should be possible to exec into the halyard container and run hal deploy apply --delete-orphaned-services from there

[dogonthehorizon]

Going to mark this as an enhancement as this would be a good thing to do!