Remove unused arg to config.setup_logging()
Remove unused arg to config.setup_logging()

The cfg.CFG argument is ignored and misleading.  This change removes it
and updates all callers.

Closes-Bug: #1355565
Change-Id: I2fcece85d1abe848e5c01125cfb62c02f2dcbc86

openstack/networking-nec,openstack/networking-nec,stackforge/networking-nec,stackforge/networking-nec