removed no longer needed functions

nucleus/principalNetworkDomain.go

@@ -119,11 +119,6 @@ func (pnd *pndImplementation) removeDevice(uuid uuid.UUID) error {
 	return nil
 }
 
-func (pnd *pndImplementation) getDevice(uuid uuid.UUID) (*Device, bool) {
-	device, exists := pnd.devices[uuid]
-	return device, exists
-}
-
 func (pnd *pndImplementation) MarshalDevice(uuid uuid.UUID) (string, error) {
 	d := pnd.devices[uuid]
 	json, err := json.MarshalIndent(d.GoStruct, "", "\t")