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

build/android/pylib/perf/thermal_throttle.py

Index: build/android/pylib/perf/thermal_throttle.py
diff --git a/build/android/pylib/perf/thermal_throttle.py b/build/android/pylib/perf/thermal_throttle.py
index 623116acd50b1d0921f6eb4b4afa4fea1b631950..d72ca7409d50ad1326d41e2074072ecf8a7f7127 100644
--- a/build/android/pylib/perf/thermal_throttle.py
+++ b/build/android/pylib/perf/thermal_throttle.py
@@ -4,8 +4,6 @@
 
 import logging
 
-from devil.android import device_utils
-
 
 class OmapThrottlingDetector(object):
   """Class to detect and track thermal throttling on an OMAP 4."""
@@ -54,6 +52,7 @@ class ExynosThrottlingDetector(object):
   def BecameUnthrottled(log_line):
     return 'exynos_thermal_unthrottle: not throttling' in log_line
 
+  # pylint: disable=unused-argument
   @staticmethod
   def GetThrottlingTemperature(_log_line):
     return None