Add python jobs to gear.

Also remove tarball jobs from projects that invoke
python-jobs, since it's included.

Change-Id: Ia6b02a1e647595672fdd53364d71f811d4749eeb
Reviewed-on: https://review.openstack.org/26413
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Approved: James E. Blair <corvus@inaugust.com>
Tested-by: Jenkins

modules/openstack_project/files/jenkins_job_builder/config/projects.yaml

@@ -81,7 +81,6 @@
 
     jobs:
       - python-jobs
-      - '{name}-tarball'
       - pypi-jobs
 
 
@@ -94,7 +93,6 @@
 
     jobs:
       - python-jobs
-      - '{name}-tarball'
       - pypi-jobs
 
 
@@ -161,8 +159,7 @@
     tarball-site: tarballs.openstack.org
 
     jobs:
-      - gate-{name}-pep8
-      - '{name}-tarball'
+      - python-jobs
       - pypi-jobs