Remove numeric flags in favor of plain string data. Scales better.

lib/util/wireutil.js

@@ -16,12 +16,6 @@ module.exports = function(wire) {
       , absent: 'ABSENT'
       }[type]]
     }
-  , toDeviceType: function(type) {
-      return wire.DeviceStatus[{
-        device: 'PHYSICAL'
-      , emulator: 'VIRTUAL'
-      }[type]]
-    }
   , envelope: function(type, message) {
       return new wire.Envelope(type, message.encode()).encodeNB()
     }