Remove superfluous logs in actor.Interrupt

[RebeccaMahany]

Relates to #1205

A bunch of our rungroup actors log errors in their Interrupt functions that did not originate from them. This creates a lot of noise in the logs. Launcher already logs the originating error on exit:

{"caller":"locallogger.go:43","level":"debug","run service: fake error from signal notify":"run launcher","stack":"run service: fake error from signal notify","ts":"2023-08-01T16:44:11.189798Z"}
{"caller":"locallogger.go:43","level":"info","run service: fake error from signal notify":"run launcher","ts":"2023-08-01T16:44:11.189913Z"}

This PR removes all other extra instances of this log to make shutdown a little less noisy and a little easier to understand.

[directionless]

I always wonder about the intent behind Interrupt(err error) as a signature.