Clean up old Rackspace Flex SJC3 project

We've moved all our resources to the new project now, so no longer
need old cloud and hostvar references.

Also include some comments about manual adjustments we made to the
MTU in the new projects.

Change-Id: I0bca50f2193d89fffd3ca20c8f8fc79e376eebb1

inventory/service/group_vars/bastion.yaml

@@ -214,30 +214,6 @@ cloud_launcher_clouds:
       - openstackci-keypairs
 
   # rackspace flex
-  - name: opendevci-raxflex-sjc3
-    oscc_cloud: opendevci-raxflex
-    region_name: SJC3
-    profiles:
-      - openstackci-keypairs
-      - openstackci-security
-      - opendevci-networking
-    routers:
-      - name: opendevci-router1
-        network: PUBLICNET
-        interfaces:
-          - opendevci-subnet1
-  - name: opendevzuul-raxflex-sjc3
-    oscc_cloud: opendevzuul-raxflex
-    region_name: SJC3
-    profiles:
-      - openstackci-keypairs
-      - openstackci-security
-      - opendevzuul-networking
-    routers:
-      - name: opendevzuul-router1
-        network: PUBLICNET
-        interfaces:
-          - opendevzuul-subnet1
   - name: opendevci-rax-flex-dfw3
     oscc_cloud: opendevci-rax-flex
     region_name: DFW3
@@ -245,6 +221,7 @@ cloud_launcher_clouds:
       - openstackci-keypairs
       - openstackci-security
       - opendevci-networking
+    # we manually set the MTU to 1500 since it's unusually high otherwise
     routers:
       - name: opendevci-router1
         network: PUBLICNET
@@ -257,6 +234,7 @@ cloud_launcher_clouds:
       - openstackci-keypairs
       - openstackci-security
       - opendevci-networking
+    # we manually set the MTU to 1500 since it's unusually high otherwise
     routers:
       - name: opendevci-router1
         network: PUBLICNET
@@ -269,6 +247,7 @@ cloud_launcher_clouds:
       - openstackci-keypairs
       - openstackci-security
       - opendevzuul-networking
+    # we manually set the MTU to 1500 since it's unusually high otherwise
     routers:
       - name: opendevzuul-router1
         network: PUBLICNET
@@ -281,6 +260,7 @@ cloud_launcher_clouds:
       - openstackci-keypairs
       - openstackci-security
       - opendevzuul-networking
+    # we manually set the MTU to 1500 since it's unusually high otherwise
     routers:
       - name: opendevzuul-router1
         network: PUBLICNET

playbooks/templates/clouds/bridge_all_clouds.yaml.j2

@@ -70,24 +70,6 @@ clouds:
       project_id: '{{ clouds.openstackjenkins_rax_project_id }}'
     auth_type: 'rackspace_apikey'
     volume_api_version: 2
-  opendevci-raxflex:
-    regions:
-      - name: SJC3
-    auth:
-      auth_url: 'https://keystone.api.sjc3.rackspacecloud.com/v3'
-      project_id: '{{ clouds.opendevci_raxflex_project_id }}'
-      username: '{{ clouds.opendevci_raxflex_username }}'
-      password: '{{ clouds.opendevci_raxflex_key }}'
-      user_domain_name: rackspace_cloud_domain
-  opendevzuul-raxflex:
-    regions:
-      - name: SJC3
-    auth:
-      auth_url: 'https://keystone.api.sjc3.rackspacecloud.com/v3'
-      project_id: '{{ clouds.opendevzuul_raxflex_project_id }}'
-      username: '{{ clouds.opendevzuul_raxflex_username }}'
-      password: '{{ clouds.opendevzuul_raxflex_key }}'
-      user_domain_name: rackspace_cloud_domain
   opendevci-rax-flex:
     regions:
       - name: DFW3

playbooks/zuul/templates/group_vars/control-plane-clouds.yaml.j2

@@ -6,18 +6,12 @@ clouds:
   openstackci_rax_username: user
   openstackci_rax_key: apikey
   openstackci_rax_project_id: project
-  opendevci_raxflex_username: user
-  opendevci_raxflex_key: apikey
-  opendevci_raxflex_project_id: project
   opendevci_rax_flex_username: user
   opendevci_rax_flex_key: apikey
   opendevci_rax_flex_project_id: project
   openstackjenkins_rax_username: user
   openstackjenkins_rax_key: apikey
   openstackjenkins_rax_project_id: project
-  opendevzuul_raxflex_username: user
-  opendevzuul_raxflex_key: apikey
-  opendevzuul_raxflex_project_id: project
   opendevzuul_rax_flex_username: user
   opendevzuul_rax_flex_key: apikey
   opendevzuul_rax_flex_project_id: project