The comment "the driver is optional" is inconsistent with what actually
done. And "vif_driver = None" after raising an exception makes no sense.
So this patch removes these lines.
Change-Id: I7f3d5b6df61037307e952a478f47c59485601847
try:
vif_driver = importutils.import_object(conf.interface_driver, conf)
except ImportError:
- # the driver is optional
msg = _('Error importing interface driver: %s')
raise SystemExit(msg % conf.interface_driver)
- vif_driver = None
try:
self.driver = importutils.import_object(