[Android] Convert RestartAdbd to DeviceUtils again.

build/android/pylib/utils/test_environment.py

 # Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import logging
 import psutil
 import signal
 
 from pylib.device import device_errors
 from pylib.device import device_utils
@@ skipping 18 matching lines @@
       except Exception as e:
         logging.warning('Failed waiting for %s to die. %s', p.pid, e)
 
 
 def CleanupLeftoverProcesses():
   """Clean up the test environment, restarting fresh adb and HTTP daemons."""
   _KillWebServers()
   device_utils.RestartServer()
 
   def cleanup_device(d):
-    d.old_interface.RestartAdbdOnDevice()
+    d.RestartAdbd()
     try:
       d.EnableRoot()
     except device_errors.CommandFailedError as e:
       logging.error(str(e))
     d.WaitUntilFullyBooted()
 
   device_utils.DeviceUtils.parallel().pMap(cleanup_device)