[Android] Add a custom pylintrc for build/android/.

build/android/pylib/local/device/local_device_environment.py

 # Copyright 2014 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.
 
 from devil.android import device_blacklist
 from devil.android import device_errors
 from devil.android import device_utils
-from devil.android.sdk import adb_wrapper
 from devil.utils import parallelizer
 from pylib.base import environment
 
 
 class LocalDeviceEnvironment(environment.Environment):
 
   def __init__(self, args, _error_func):
     super(LocalDeviceEnvironment, self).__init__()
     self._blacklist = device_blacklist.Blacklist(
         args.blacklist_file or device_blacklist.BLACKLIST_JSON)
@@ skipping 30 matching lines @@
     return self._max_tries
 
   @property
   def tool(self):
     return self._tool_name
 
   #override
   def TearDown(self):
     pass