Remove console_user check.

It would seem mythbackend doesn't call this script when mythwelcome isn't
running, so this check just serves to block shutdown in the case where
the frontend has died for some reason.

TODO: check this
Add beardcomb script
Set setgid bit on created dirs.
Revert "Remove console_user check."

This reverts commit f726c0f907ef2ef1936a0ec79903ac05fde9c182.

I was wrong. This check is needed.