Hide Regional Teams that contain no CCGs (#1592)
Hide Regional Teams that contain no CCGs (#1592)

Addresses comment at
https://github.com/ebmdatalab/openprescribing/pull/1415#issuecomment-474818975
annapowellsmith/openpresc,annapowellsmith/openpresc,ebmdatalab/openprescribing,ebmdatalab/openprescribing,ebmdatalab/openprescribing,annapowellsmith/openpresc,ebmdatalab/openprescribing,annapowellsmith/openpresc