Remove Nova parameters that are no longer used

Since Train release several puppet classes were removed
from puppet-nova. At the same time, some of them are
still defined in tripleo heat templates.

- nova::use_ipv6 was used to configure IPv6 for nova-network.
  DEFAULT/use_ipv6 nova configuration option was deprecated
  in Ocata release and removed from puppet-nova in Train
  release. Setting this parameter in THT no longer affects
  anything.
- nova::compute::neutron::libvirt_vif_driver seems like an
  artifact: though it was removed from puppet-nova only in
  Train release, actual nova configuration parameter was
  deprecated in IceHouse and hard-coded in Juno.

Puppet-nova change id: I6f7fde1f475acec82bafc66183211f317b4c7795

Conflicts:
      deployment/nova/nova-base-puppet.yaml

Resolved conflicts related to changes
I42af3e39da76ae94ca7bbf2797f776c28a75f7e7 and
If8a3d0a6db1b2950191ab62bdcfd7d2f12935de1
both of these are changes are not required in stable/train release.

Change-Id: Ia269193f1f5215612165a2a0228bf4d1859b7b1e
Closes-Bug: #1869528
(cherry picked from commit ebfe7897af)

ci/environments/network/multiple-nics-ipv6/network-isolation-absolute.yaml

@@ -29,7 +29,6 @@ resource_registry:
 parameter_defaults:
   CephIPv6: True
   CorosyncIPv6: True
-  NovaIPv6: True
   RabbitIPv6: True
   MemcachedIPv6: True
   ManilaIPv6: True

ci/environments/network/multiple-nics-ipv6/network-isolation.yaml

@@ -29,7 +29,6 @@ resource_registry:
 parameter_defaults:
   CephIPv6: True
   CorosyncIPv6: True
-  NovaIPv6: True
   RabbitIPv6: True
   MemcachedIPv6: True
   ManilaIPv6: True

deployment/nova/nova-base-puppet.yaml

@@ -83,10 +83,6 @@ parameters:
     description: >
         Remove configuration that is not generated by TripleO. Used to avoid
         configuration remnants after upgrades.
-  NovaIPv6:
-    default: false
-    description: Enable IPv6 features in Nova
-    type: boolean
   UpgradeLevelNovaCompute:
     type: string
     description: Nova Compute upgrade level
@@ -345,7 +341,6 @@ outputs:
           nova::db::sync::db_sync_timeout: {get_param: DatabaseSyncTimeout}
           nova::db::sync_api::db_sync_timeout: {get_param: DatabaseSyncTimeout}
           nova::glance_api_servers: {get_param: [EndpointMap, GlanceInternal, uri]}
-          nova::use_ipv6: {get_param: NovaIPv6}
           nova::network::neutron::neutron_ovs_bridge: {get_param: NovaOVSBridge}
           nova::cron::archive_deleted_rows::minute: {get_param: NovaCronArchiveDeleteRowsMinute}
           nova::cron::archive_deleted_rows::hour: {get_param: NovaCronArchiveDeleteRowsHour}

deployment/nova/nova-compute-container-puppet.yaml

@@ -130,10 +130,6 @@ parameters:
     type: boolean
     tags:
       - role_specific
-  NovaComputeLibvirtVifDriver:
-    default: ''
-    description: Libvirt VIF driver configuration for the network
-    type: string
   NovaPCIPassthrough:
     description: >
       List of PCI Passthrough whitelist parameters.
@@ -743,7 +739,6 @@ outputs:
               - enable_live_migration_tunnelled
               - true
               - false
-            nova::compute::neutron::libvirt_vif_driver: {get_param: NovaComputeLibvirtVifDriver}
             # NOTE: bind IP is found in hiera replacing the network name with the
             # local node IP for the given network; replacement examples
             # (eg. for internal_api):

environments/network-isolation-v6-all.j2.yaml

@@ -54,8 +54,6 @@ parameter_defaults:
   CorosyncIPv6: True
   # Enable IPv6 for MongoDB. This is required when MongoDB is using an IPv6 IP.
   MongoDbIPv6: True
-  # Enable various IPv6 features in Nova.
-  NovaIPv6: True
   # Enable IPv6 environment for RabbitMQ.
   RabbitIPv6: True
   # Enable IPv6 environment for Memcached.

environments/network-isolation-v6.j2.yaml

@@ -59,8 +59,6 @@ parameter_defaults:
   CephIPv6: True
   # Enable IPv6 for Corosync. This is required when Corosync is using an IPv6 IP in the cluster.
   CorosyncIPv6: True
-  # Enable various IPv6 features in Nova.
-  NovaIPv6: True
   # Enable IPv6 environment for RabbitMQ.
   RabbitIPv6: True
   # Enable IPv6 environment for Memcached.

environments/nova-nuage-config.yaml

@@ -8,6 +8,5 @@ parameter_defaults:
   NuageStandbyController: '0.0.0.0'
   NovaOVSBridge: 'default_bridge'
   NovaComputeLibvirtType: 'default_type'
-  NovaIPv6: False
   NuageMetadataProxySharedSecret: 'default'
   NuageNovaApiEndpoint: 'default_endpoint'