Nova network was deprecated in Newton and is no longer supported for
regular deployments in Ocata [1]. In manila itself, changes [2] and
[3] remove nova network plugin support in manila services and remove
the nova-network-id field from the database model for share networks.
Add a new micro-version in which nova-network-id options are no longer
allowed when creating or modifying share networks.
[1] http://docs.openstack.org/releasenotes/nova/unreleased.html
[2] I846b760fa7c01f7f86768399a2bfad9ced7e57cd
[3] I8b9a559fbea61979f01737ed1dc272276c4f1269
Partially-implements: bp remove-nova-net-plugin
Closes-Bug: #1656756
Change-Id: Ic27b7d26a5a7d1100e57ee8a857fc45fc3b0a909
41505d0f89