remove grpc parameters

dev.yaml

@@ -3,10 +3,6 @@ server:
   apiconn: "api.ping.clustercat.com:443"
   apihost: ""
   apiport: "8081"
-  grpcconn: "grpc.ping.clustercat.com:443"
-  grpchost: ""
-  grpcport: "50051"
-  grpcsecure: "on"
   mqhost: "localhost"
   masterkey: "secretkey"
   dnskey: ""