Reland Reenable unused-import lint check for telemetry.

tools/telemetry/telemetry/core/android_app_unittest.py

Index: tools/telemetry/telemetry/core/android_app_unittest.py
diff --git a/tools/telemetry/telemetry/core/android_app_unittest.py b/tools/telemetry/telemetry/core/android_app_unittest.py
index 91a5a0d18312f9df51942401869ce95d5cc33bd8..fa3838631de013bad39032e3cf4a8808e9b985b2 100644
--- a/tools/telemetry/telemetry/core/android_app_unittest.py
+++ b/tools/telemetry/telemetry/core/android_app_unittest.py
@@ -6,13 +6,16 @@ import logging
 import time
 import unittest
 
-from pylib.device import intent
 from telemetry.core import android_app
 from telemetry.core.backends import android_app_backend
 from telemetry.core import platform as platform_module
 from telemetry.core.platform import android_device
+from telemetry.core import util
 from telemetry.unittest_util import options_for_unittests
 
+util.AddDirToPythonPath(util.GetChromiumSrcDir(), 'build', 'android')
+from pylib.device import intent  # pylint: disable=import-error
+
 
 class AndroidAppTest(unittest.TestCase):
   def setUp(self):