Make *sideways-ironic non-voting
Make *sideways-ironic non-voting

A previous commit limited this job to stable + proposed but unexpectedly
made it voting.  This ensures its non-voting again.

Change-Id: Ic49955aff9eb913c9a5f943bfee91d92a6e86821

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