Merge "puppet/tripleo: IRC channels cleanup"

gerritbot/channels.yaml

@@ -2459,7 +2459,6 @@ puppet-openstack:
     - openstack/puppet-swift
     - openstack/puppet-tacker
     - openstack/puppet-tempest
-    - openstack/puppet-tripleo
     - openstack/puppet-trove
     - openstack/puppet-tuskar
     - openstack/puppet-vitrage
@@ -2469,8 +2468,6 @@ puppet-openstack:
   branches:
     - master
     # OpenStack releases
-    - stable/juno
-    - stable/liberty
     - stable/mitaka
     - stable/newton
     # Ceph releases
@@ -2655,7 +2652,6 @@ tripleo:
     - openstack/tripleo-validations
   branches:
     - master
-    - stable/liberty
     - stable/mitaka
     - stable/newton