remove python33 from marconi gate
remove python33 from marconi gate

non-voting jobs shouldn't be in the gate queue, as they provide
no value, and just tie up additional resources.

Change-Id: I245eada7d5f5583d4a9d21f80995dc569d4ac7a4

coolsvap/project-config,osrg/project-config,openstack-infra/project-config,openstack-infra/project-config,anbangr/osci-project-config,coolsvap/project-config,noorul/os-project-config,dongwenjuan/project-config,citrix-openstack/project-config,Tesora/tesora-project-config,open-switch/infra_project-config,citrix-openstack/project-config,noorul/os-project-config,dongwenjuan/project-config,osrg/project-config,anbangr/osci-project-config,Tesora/tesora-project-config,open-switch/infra_project-config