Remove channel openstack-vmware-nsx

This channel is not used by any members of the team. We should be
using #openstack-neutron instead.

Depends-On: I1f4f57fe57e6a102de9c8edce3d16df8fb896d5b

Change-Id: Icaadfd835696e70fb2d4ca3cd59ff5d4e4b98735

accessbot/channels.yaml

@@ -240,7 +240,6 @@ channels:
   - name: openstack-valence
   - name: openstack-valet
   - name: openstack-vitrage
-  - name: openstack-vmware-nsx
   - name: openstack-watcher
   - name: openstack-windmill
   - name: openstack-women

gerritbot/channels.yaml

@@ -2534,17 +2534,6 @@ openstack-vitrage:
   branches:
     - master
 
-openstack-vmware-nsx:
-  events:
-    - patchset-created
-    - change-merged
-    - x-vrif-minus-2
-  projects:
-    - openstack/neutron
-    - openstack/vmware-nsx
-  branches:
-    - master
-
 openstack-watcher:
   events:
     - patchset-created