Remove unused environment files for undercloud

Nova, Swift, Cinder and Keystone are no longer supported Undercloud,
and were removed by the dependent patches.

Depends-on: https://review.opendev.org/c/openstack/python-tripleoclient/+/841205
Depends-on: https://review.opendev.org/c/openstack/python-tripleoclient/+/827257
Change-Id: I10707e6ecd6b70eeed8ab6a93bc815e9c074eb05

environments/services/undercloud-cinder.yaml

@@ -1,6 +0,0 @@
-# DEPRECATED. This file will be removed in the Stein release as it is no longer
-# needed
-resource_registry:
-  OS::TripleO::Services::CinderApi: ../../deployment/cinder/cinder-api-container-puppet.yaml
-  OS::TripleO::Services::CinderScheduler: ../../deployment/cinder/cinder-scheduler-container-puppet.yaml
-  OS::TripleO::Services::CinderVolume: ../../deployment/cinder/cinder-volume-container-puppet.yaml

environments/undercloud-enable-keystone.yaml

@@ -1,12 +0,0 @@
-parameter_defaults:
-  IronicAuthStrategy: keystone
-  NeutronAuthStrategy: keystone
-  KeystoneCorsAllowedOrigin: '*'
-  KeystoneEnableMember: true
-  # Increase the Token expiration time until we fix the actual session bug:
-  # https://bugs.launchpad.net/tripleo/+bug/1761050
-  TokenExpiration: 14400
-
-resource_registry:
-  OS::TripleO::Services::Keystone: ../deployment/keystone/keystone-container-puppet.yaml
-  OS::TripleO::Services::Memcached: ../deployment/memcached/memcached-container-puppet.yaml

environments/undercloud-enable-nova.yaml

@@ -1,34 +0,0 @@
-# This heat environment can be used to enable the nova/glance services used on
-# the undercloud.
-
-parameter_defaults:
-  NovaSchedulerAvailableFilters: 'tripleo_common.filters.list.tripleo_filters'
-  NovaSchedulerEnabledFilters:
-    - TripleOCapabilitiesFilter
-    - ComputeCapabilitiesFilter
-    - ComputeFilter
-    - ImagePropertiesFilter
-    - ServerGroupAntiAffinityFilter
-    - ServerGroupAffinityFilter
-  NovaSchedulerMaxAttempts: 30
-  # Disable compute auto disabling:
-  # As part of Pike, nova introduced a change to have the nova-compute
-  # process automatically disable the nova-compute instance in the case of
-  # consecutive build failures. This can lead to odd errors when deploying
-  # the ironic nodes on the undercloud as you end up with a ComputeFilter
-  # error. This parameter disables this functionality for the undercloud since
-  # we do not want the nova-compute instance running on the undercloud for
-  # Ironic to be disabled in the case of multiple deployment failures.
-  NovaAutoDisabling: '0'
-  NovaCorsAllowedOrigin: '*'
-  NovaSyncPowerStateInterval: -1
-  IronicConfigureSwiftTempUrlKey: true
-
-resource_registry:
-  OS::TripleO::Services::NovaApi: ../deployment/nova/nova-api-container-puppet.yaml
-  OS::TripleO::Services::NovaConductor: ../deployment/nova/nova-conductor-container-puppet.yaml
-  OS::TripleO::Services::NovaIronic: ../deployment/nova/nova-ironic-container-puppet.yaml
-  OS::TripleO::Services::NovaScheduler: ../deployment/nova/nova-scheduler-container-puppet.yaml
-  OS::TripleO::Services::GlanceApi: ../deployment/glance/glance-api-container-puppet.yaml
-  OS::TripleO::Services::PlacementApi: ../deployment/placement/placement-api-container-puppet.yaml
-  OS::TripleO::Services::Logging::PlacementApi: ../deployment/logging/files/placement-api.yaml

environments/undercloud-enable-swift.yaml

@@ -1,12 +0,0 @@
-parameter_defaults:
-  SwiftCorsAllowedOrigin: '*'
-  SwiftReplicas: 1
-  SwiftWorkers: 2
-  SwiftAccountWorkers: 2
-  SwiftContainerWorkers: 2
-  SwiftObjectWorkers: 2
-
-resource_registry:
-  OS::TripleO::Services::SwiftProxy: ../deployment/swift/swift-proxy-container-puppet.yaml
-  OS::TripleO::Services::SwiftStorage: ../deployment/swift/swift-storage-container-puppet.yaml
-  OS::TripleO::Services::SwiftRingBuilder: ../deployment/swift/swift-ringbuilder-container-puppet.yaml