Update .zuul.yaml

Remove extra publish-openstack-python-branch-tarball job:

  With change https://review.openstack.org/609098 merged, we do not need
  required-projects for publish-openstack-python-branch-tarball anymore.

  The job can now be removed completely from the post pipeline since it
  is part of the python-jobs template.

Sort list of templates alphabetically to easily find them.

Remove job periodic-jobs-with-neutron-lib-master - this is a master only
job, it should stay in project-config to not confuse when branching.

Change-Id: Icd8838bab7c9ef288679b6b052e2702b71543571

.zuul.yaml

@@ -1,11 +1,10 @@
 - project:
     templates:
-      - openstack-python-jobs-neutron
+      - build-openstack-docs-pti
       - check-requirements
+      - openstack-python-jobs-neutron
       - openstack-python35-jobs-neutron
       - openstack-python36-jobs
-      - periodic-jobs-with-neutron-lib-master
-      - build-openstack-docs-pti
     check:
       jobs:
         - vmware-tox-lower-constraints
@@ -115,20 +114,6 @@
               - openstack/neutron-vpnaas
               - openstack/tap-as-a-service
               - openstack/octavia
-    post:
-      jobs:
-        - publish-openstack-python-branch-tarball:
-            required-projects:
-              - openstack/neutron
-              - openstack/networking-l2gw
-              - openstack/networking-sfc
-              - openstack/neutron-lbaas
-              - openstack/vmware-nsxlib
-              - openstack/neutron-fwaas
-              - openstack/neutron-dynamic-routing
-              - openstack/neutron-vpnaas
-              - openstack/tap-as-a-service
-              - openstack/octavia
 
 - job:
     name: vmware-tox-lower-constraints