[Android] Prepare build/android/ for catapult+devil.

build/android/gyp/util/build_device.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.
 
 """ A simple device interface for build steps.
 
 """
 
 import logging
 import os
 import re
 import sys
 
 from util import build_utils
 
-BUILD_ANDROID_DIR = os.path.abspath(
-    os.path.join(os.path.dirname(__file__), '..', '..'))
-sys.path.append(BUILD_ANDROID_DIR)
-
 from devil.android import device_errors
 from devil.android import device_utils
 from devil.android.sdk import adb_wrapper
 
 
 def GetAttachedDevices():
   return [a.GetDeviceSerial()
           for a in adb_wrapper.AdbWrapper.Devices()]
 
 
@@ skipping 73 matching lines @@
   assert len(configurations) == 1
   return BuildDevice(configurations[0])
 
 
 def GetBuildDeviceFromPath(path):
   configurations = ReadConfigurations(path)
   if len(configurations) > 0:
     return GetBuildDevice(ReadConfigurations(path))
   return None