Updated openstack/openstack
Project: openstack/neutron  177010dcbeed3889b572cf6e4f25ede6e63e3f8c

Migrate to oslo.utils

The following modules are removed:
  - excutils,
  - importutils,
  - network_utils,
  - strutils,
  - timeutils.

Closes-Bug: #1385355
Change-Id: I1f34f17f5dbf37032584008f27e65d4dc4d475f4