Disable the remaining pylint warnings locally and enable pylint warnings in PRESUBMIT.

PRESUBMIT.py

Index: PRESUBMIT.py
diff --git a/PRESUBMIT.py b/PRESUBMIT.py
index 5d3c9b352534ab44979393d93e5cd03489c96548..9531deee314e75749c6dbffcec873a9a0817bf68 100644
--- a/PRESUBMIT.py
+++ b/PRESUBMIT.py
@@ -57,17 +57,17 @@ def RunPylint(input_api, output_api):
   # It uses non-standard pylint exceptions that makes pylint always fail.
   files.remove('cpplint.py')
   try:
-    proc = input_api.subprocess.Popen(['pylint', '-E'] + sorted(files))
+    proc = input_api.subprocess.Popen(['pylint'] + sorted(files))
     proc.communicate()
     if proc.returncode:
       return [output_api.PresubmitError('Fix pylint errors first.')]
     return []
-  except OSError, e:
+  except OSError:
     if input_api.platform == 'win32':
-        return [output_api.PresubmitNotifyResult(
-          'Warning: Can\'t run pylint because it is not installed. Please '
-          'install manually\n'
-          'Cannot do static analysis of python files.')]
+      return [output_api.PresubmitNotifyResult(
+        'Warning: Can\'t run pylint because it is not installed. Please '
+        'install manually\n'
+        'Cannot do static analysis of python files.')]
     return [output_api.PresubmitError(
         'Please install pylint with "sudo apt-get install python-setuptools; '
         'sudo easy_install pylint"\n'