Remove logging from top of napalm util file
Remove logging from top of napalm util file

Logging should not be done anywhere in a file before a module is
loaded. This includes the `__virtual__()` function as well. This
is because these messages will be logged on every call to the loader,
which muddies the logs when the function(s) being called do not
need to use that particular module.

saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt