Remove linaro-cn1 region

This region has been retired.  See also
I149e74ff5e788bb860deb4c3cc38d9c8ed5766c6

Change-Id: Ia85587a7bbe52a92d70d6cb96d843ee5f5fc84f6

inventory/openstack.yaml

@@ -558,13 +558,6 @@ all:
         region_name: ca-ymq-1
       public_v4: 162.253.55.61
       public_v6: 2604:e100:1:0:f816:3eff:fee2:d1d6
-    mirror01.cn1.linaro.openstack.org:
-      ansible_host: 103.20.251.153
-      location:
-        cloud: openstackci-linaro
-        region_name: RegionOne
-      public_v4: 103.20.251.153
-      public_v6: ''
     mirror01.gra1.ovh.openstack.org:
       ansible_host: 147.135.133.8
       location:

playbooks/templates/clouds/bridge_all_clouds.yaml.j2

@@ -150,16 +150,6 @@ clouds:
       project_name: 'OpenStack CI Project'
       project_domain_name: 'CCP_Domain_27611'
       user_domain_name: 'CCP_Domain_27611'
-  openstackci-linaro:
-    regions:
-      - RegionOne
-    auth:
-      auth_url: https://cn1.linaro.cloud:35357
-      username: '{{ clouds.openstackci_linaro_username }}'
-      password: '{{ clouds.openstackci_linaro_password }}'
-      project_name: '{{ clouds.openstackci_linaro_project_name }}'
-      project_domain_name: default
-      user_domain_name: default
   openstackzuul-linaro:
     regions:
       - RegionOne

playbooks/templates/clouds/bridge_clouds.yaml.j2

@@ -87,16 +87,6 @@ clouds:
       project_name: 'Default Project 27611'
       project_domain_name: CCP_Domain_27611
       user_domain_name: CCP_Domain_27611
-  openstackci-linaro:
-    regions:
-      - RegionOne
-    auth:
-      auth_url: https://cn1.linaro.cloud:35357
-      username: '{{ clouds.openstackci_linaro_username }}'
-      password: '{{ clouds.openstackci_linaro_password }}'
-      project_name: '{{ clouds.openstackci_linaro_project_name }}'
-      project_domain_name: default
-      user_domain_name: default
   openstackci-linaro-london:
     regions:
       - London

playbooks/templates/clouds/nodepool_clouds.yaml.j2

@@ -86,17 +86,6 @@ clouds:
       project_name: 'OpenStack CI Project'
       project_domain_name: CCP_Domain_27611
       user_domain_name: CCP_Domain_27611
-  linaro:
-    regions:
-      - RegionOne
-    identity_api_version: '3'
-    auth:
-      auth_url: https://cn1.linaro.cloud:35357
-      username: '{{ nodepool_linaro_username }}'
-      password: '{{ nodepool_linaro_password }}'
-      project_name: '{{ nodepool_linaro_project }}'
-      project_domain_name: default
-      user_domain_name: default
   linaro-london:
     regions:
       - London