Remove py3 gate job from kite

I hoped with a new project that we could just start out with python 3
from the beginning however there is just too many dependencies that we
can't use then

Change-Id: I24d44976934cd165043b80c779fb4740c53d9dc2

modules/openstack_project/files/zuul/layout.yaml

@@ -445,6 +445,8 @@ jobs:
     voting: false
   - name: ^(gate|check)-tempest-dsvm-sahara-neutron-nv$
     voting: false
+  - name: gate-kite-python33
+    voting: false
   - name: gate-keystone-python33
     voting: false
   - name: gate-marconi-python33
@@ -3460,8 +3462,6 @@ projects:
       - name: check-requirements
     check:
       - gate-kite-python33
-    gate:
-      - gate-kite-python33
     pre-release:
       - kite-tarball
     release: