remove duplicated subscriber types cv in vocabularies.json
remove duplicated subscriber types cv in vocabularies.json

superdesk/superdesk-ntb,petrjasek/superdesk-ntb,petrjasek/superdesk-ntb,ioanpocol/superdesk-ntb,superdesk/superdesk-ntb,superdesk/superdesk-ntb,ioanpocol/superdesk-ntb,petrjasek/superdesk-ntb,petrjasek/superdesk-ntb,superdesk/superdesk-ntb,ioanpocol/superdesk-ntb