[Android] Remove all references to pylib from telemetry.

tools/telemetry/telemetry/internal/platform/android_platform_backend_unittest.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 unittest
 
 from telemetry import decorators
 from telemetry.internal.platform import android_device
 from telemetry.internal.platform import android_platform_backend
 from telemetry.testing import options_for_unittests
@@ skipping 14 matching lines @@
 
     # Skip _FixPossibleAdbInstability by setting psutil to None.
     self._actual_ps_util = android_platform_backend.psutil
     android_platform_backend.psutil = None
     self.battery_patcher = mock.patch.object(battery_utils, 'BatteryUtils')
     self.battery_patcher.start()
 
     def get_prop(name, cache=None):
       return {'ro.product.cpu.abi': 'armeabi-v7a'}.get(name)
 
-    self.setup_prebuilt_tool_patcher = mock.patch(
-        'telemetry.internal.platform.android_platform_backend._SetupPrebuiltTools') # pylint: disable=line-too-long
-    m = self.setup_prebuilt_tool_patcher.start()
-    m.return_value = True
-
     self.device_patcher = mock.patch.multiple(
         device_utils.DeviceUtils,
         HasRoot=mock.MagicMock(return_value=True),
         GetProp=mock.MagicMock(side_effect=get_prop))
     self.device_patcher.start()
 
   def tearDown(self):
     self._stubs.Restore()
     android_platform_backend.psutil = self._actual_ps_util
     self.battery_patcher.stop()
-    self.setup_prebuilt_tool_patcher.stop()
     self.device_patcher.stop()
 
   @decorators.Disabled('chromeos')
   def testIsSvelte(self):
     with mock.patch('devil.android.device_utils.DeviceUtils.RunShellCommand',
                     return_value=0):
       backend = android_platform_backend.AndroidPlatformBackend(
           android_device.AndroidDevice('12345'), self._options)
       self.assertTrue(backend.IsSvelte())
 
@@ skipping 109 matching lines @@
       return [self.Process(self)]
 
   def setUp(self):
     self._options = options_for_unittests.GetCopy()
     self._stubs = system_stub.Override(
         android_platform_backend,
         ['perf_control'])
     self.battery_patcher = mock.patch.object(battery_utils, 'BatteryUtils')
     self.battery_patcher.start()
     self._actual_ps_util = android_platform_backend.psutil
-    self.setup_prebuilt_tool_patcher = mock.patch(
-        'telemetry.internal.platform.android_platform_backend._SetupPrebuiltTools') # pylint: disable=line-too-long
-    m = self.setup_prebuilt_tool_patcher.start()
-    m.return_value = True
 
     def get_prop(name, cache=None):
       return {'ro.product.cpu.abi': 'armeabi-v7a'}.get(name)
 
-    self.helper_patcher = mock.patch(
-        'telemetry.internal.platform.android_platform_backend._SetupPrebuiltTools', # pylint: disable=line-too-long
-        return_value=True)
-    self.helper_patcher.start()
-
     self.device_patcher = mock.patch.multiple(
         device_utils.DeviceUtils,
         FileExists=mock.MagicMock(return_value=False),
         GetProp=mock.MagicMock(side_effect=get_prop),
         HasRoot=mock.MagicMock(return_value=True))
     self.device_patcher.start()
 
   def tearDown(self):
     self._stubs.Restore()
     android_platform_backend.psutil = self._actual_ps_util
     self.battery_patcher.stop()
     self.device_patcher.stop()
-    self.helper_patcher.stop()
-    self.setup_prebuilt_tool_patcher.stop()
 
   @decorators.Disabled('chromeos')
   def testPsutil1(self):
     psutil = self.psutil_1_0()
     android_platform_backend.psutil = psutil
 
     # Mock an empty /proc/pid/stat.
     with mock.patch('devil.android.device_utils.DeviceUtils.ReadFile',
                     return_value=''):
       backend = android_platform_backend.AndroidPlatformBackend(
           android_device.AndroidDevice('1234'), self._options)
       cpu_stats = backend.GetCpuStats('7702')
       self.assertEquals({}, cpu_stats)
       self.assertEquals([[0]], psutil.set_cpu_affinity_args)
 
   @decorators.Disabled('chromeos')
   def testPsutil2(self):
     psutil = self.psutil_2_0()
     android_platform_backend.psutil = psutil
 
     # Mock an empty /proc/pid/stat.
     with mock.patch('devil.android.device_utils.DeviceUtils.ReadFile',
                     return_value=''):
       backend = android_platform_backend.AndroidPlatformBackend(
           android_device.AndroidDevice('1234'), self._options)
       cpu_stats = backend.GetCpuStats('7702')
       self.assertEquals({}, cpu_stats)
       self.assertEquals([[0]], psutil.set_cpu_affinity_args)