Graphite-nozzle SG cleanup
Graphite-nozzle SG cleanup

Unbind graphite-nozzle as a global staging and running SG.

Revert this commit after deployed to prod.

alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf