Remove last vestiges of network_config
Remove last vestiges of network_config

prometheanfire/openstack-guest-agents-unix,rackerlabs/openstack-guest-agents-unix,joejulian/openstack-guest-agents-unix,joejulian/openstack-guest-agents-unix,prometheanfire/openstack-guest-agents-unix,prometheanfire/openstack-guest-agents-unix,coreos/openstack-guest-agents-unix,rackerlabs/openstack-guest-agents-unix,joejulian/openstack-guest-agents-unix,rackerlabs/openstack-guest-agents-unix,coreos/openstack-guest-agents-unix,coreos/openstack-guest-agents-unix,coreos/openstack-guest-agents-unix