Revert "Fix adbkit API invocations (#524)" (#528)

This reverts commit 6f09708304.

lib/units/device/support/properties.js

@@ -1,5 +1,4 @@
 var syrup = require('@devicefarmer/stf-syrup')
-var deviceClient = require('@devicefarmer/adbkit').DeviceClient
 
 var logger = require('../../../util/logger')
 
@@ -10,8 +9,7 @@ module.exports = syrup.serial()
 
     function load() {
       log.info('Loading properties')
-      var client = deviceClient(adb, options.serial)
-      return client.getProperties()
+      return adb.getProperties(options.serial)
         .timeout(10000)
     }