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

PRESUBMIT.py

 # Copyright (c) 2009 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.
 
 """Top-level presubmit script for depot tools.
 
 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts for
 details on the presubmit API built into gcl.
 """
 
@@ skipping 39 matching lines @@
   return []
 
 def RunPylint(input_api, output_api):
   import glob
   files = glob.glob('*.py')
   # It's a python script
   files.append('git-try')
   # 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'
         'Cannot do static analysis of python files.')]