fix zuul jobs
fix zuul jobs

Remove system-required, this is not needed in-repo, it is configured
globally automatic for all repos.

Remove publish-to-pypi, this does not work in-repo, it needs to stay
in project-config.

Change-Id: I3792149fdf1c100b1dd35a8d60cb822f18e8d41c

openstack/networking-bigswitch,stackforge/networking-bigswitch,openstack/networking-bigswitch,wolverineav/networking-bigswitch,stackforge/networking-bigswitch,wolverineav/networking-bigswitch