prevent action or step from simulating running on a special remote

prevent action or step from simulating running on a special remote

Without any connections, the step command will not try to do any actions
on a special remote.

But even without any connections, it's still possible for a drop action
explicitly run "on" the special remote to do, when numcopies = 0 or
there is a trusted repo. So guard all actions against running on a
special remote too.