[linux][repos] Remove unused repositories

    {openstack-release}-* repositories are always empty and never been
    used for deployment.

    Related-PROD: https://mirantis.jira.com/browse/PROD-16013

Change-Id: I17c1dbd7bdc1ffac4525bc61b2e40f9ca4eada7a
diff --git a/linux/system/repo/mcp/openstack.yml b/linux/system/repo/mcp/openstack.yml
index 8b91431..baa363a 100644
--- a/linux/system/repo/mcp/openstack.yml
+++ b/linux/system/repo/mcp/openstack.yml
@@ -13,38 +13,6 @@
           - pin: 'release a=${_param:openstack_version}'
             priority: 1100
             package: '*'
-        mirantis_openstack_hotfix:
-          source: "deb http://mirror.fuel-infra.org/mcp-repos/${_param:openstack_version}/${_param:linux_system_codename} ${_param:openstack_version}-hotfix main"
-          architectures: amd64
-          key_url: "http://mirror.fuel-infra.org/mcp-repos/${_param:openstack_version}/${_param:linux_system_codename}/archive-mcp${_param:openstack_version}.key"
-          pin:
-          - pin: 'release a=${_param:openstack_version}-hotfix'
-            priority: 1100
-            package: '*'
-        mirantis_openstack_security:
-          source: "deb http://mirror.fuel-infra.org/mcp-repos/${_param:openstack_version}/${_param:linux_system_codename} ${_param:openstack_version}-security main"
-          architectures: amd64
-          key_url: "http://mirror.fuel-infra.org/mcp-repos/${_param:openstack_version}/${_param:linux_system_codename}/archive-mcp${_param:openstack_version}.key"
-          pin:
-          - pin: 'release a=${_param:openstack_version}-security'
-            priority: 1100
-            package: '*'
-        mirantis_openstack_updates:
-          source: "deb http://mirror.fuel-infra.org/mcp-repos/${_param:openstack_version}/${_param:linux_system_codename} ${_param:openstack_version}-updates main"
-          architectures: amd64
-          key_url: "http://mirror.fuel-infra.org/mcp-repos/${_param:openstack_version}/${_param:linux_system_codename}/archive-mcp${_param:openstack_version}.key"
-          pin:
-          - pin: 'release a=${_param:openstack_version}-updates'
-            priority: 1100
-            package: '*'
-        mirantis_openstack_holdback:
-          source: "deb http://mirror.fuel-infra.org/mcp-repos/${_param:openstack_version}/${_param:linux_system_codename} ${_param:openstack_version}-holdback main"
-          architectures: amd64
-          key_url: "http://mirror.fuel-infra.org/mcp-repos/${_param:openstack_version}/${_param:linux_system_codename}/archive-mcp${_param:openstack_version}.key"
-          pin:
-          - pin: 'release a=${_param:openstack_version}-holdback'
-            priority: 1100
-            package: '*'
         mk_openstack:
           source: "deb [arch=amd64] http://apt.mirantis.com/${_param:linux_system_codename}/ ${_param:linux_system_repo_mk_openstack_version} ${_param:openstack_version}"
           architectures: amd64
diff --git a/linux/system/repo_local/mcp/openstack.yml b/linux/system/repo_local/mcp/openstack.yml
index 83bb29b..a25cc57 100644
--- a/linux/system/repo_local/mcp/openstack.yml
+++ b/linux/system/repo_local/mcp/openstack.yml
@@ -10,36 +10,3 @@
           - pin: 'release a=${_param:openstack_version}'
             priority: 1100
             package: '*'
-        mirantis_openstack_hotfix:
-          source: "deb [arch=amd64] http://${_param:local_repo_url}/ubuntu-${_param:linux_system_codename}/ ${_param:openstack_version}-hotfix main"
-          architectures: amd64
-          key_url: "http://${_param:local_repo_url}/public.gpg"
-          pin:
-          - pin: 'release a=${_param:openstack_version}-hotfix'
-            priority: 1100
-            package: '*'
-        mirantis_openstack_security:
-          source: "deb [arch=amd64] http://${_param:local_repo_url}/ubuntu-${_param:linux_system_codename}/ ${_param:openstack_version}-security main"
-          architectures: amd64
-          key_url: "http://${_param:local_repo_url}/public.gpg"
-          pin:
-          - pin: 'release a=${_param:openstack_version}-security'
-            priority: 1100
-            package: '*'
-        mirantis_openstack_updates:
-          source: "deb [arch=amd64] http://${_param:local_repo_url}/ubuntu-${_param:linux_system_codename}/ ${_param:openstack_version}-updates main"
-          architectures: amd64
-          key_url: "http://${_param:local_repo_url}/public.gpg"
-          pin:
-          - pin: 'release a=${_param:openstack_version}-updates'
-            priority: 1100
-            package: '*'
-        mirantis_openstack_holdback:
-          refresh_db: ${_param:linux_repo_refresh_db}
-          source: "deb [arch=amd64] http://${_param:local_repo_url}/ubuntu-${_param:linux_system_codename}/ ${_param:openstack_version}-holdback main"
-          architectures: amd64
-          key_url: "http://${_param:local_repo_url}/public.gpg"
-          pin:
-          - pin: 'release a=${_param:openstack_version}-holdback'
-            priority: 1100
-            package: '*'