On second thought, we should probably handle that case.

rhsmcertd-worker could hit it when handling a GoneException, which the try/except in __main__ would catch, but that would hide the GoneException (and the try/except there reraises the handled exception, so the stack trace in that case is going to be kind of misleading)

Also, probably not atypical for an admin to do something like unregister from the web ui, then manually/script/puppet/etc rm /etc/pki/entitlements. We should probably be able to handle the case of that dir missing on unregister.