Remove custom .boto file path in tools.

tools/bots/bot_utils.py

 #!/usr/bin/env python
 #
 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 import hashlib
 import imp
 import os
 import platform
@@ skipping 245 matching lines @@
             location = os.path.join(directory, 'gsutil')
             if os.path.isfile(location):
               GSUtil.GSUTIL_IS_SHELL_SCRIPT = False
               GSUtil.GSUTIL_PATH = location
               break
       assert GSUtil.GSUTIL_PATH
 
   def execute(self, gsutil_args):
     self._layzCalculateGSUtilPath()
 
-    env = dict(os.environ)
-    # If we're on the buildbot, we use a specific boto file.
-    user_name = os.environ.get(
-        'USERNAME' if sys.platform == 'win32' else 'USER', '')
-    if user_name == 'chrome-bot':
-      boto_config = {
-        'Linux': '/mnt/data/b/build/site_config/.boto',
-        'Darwin': '/Volumes/data/b/build/site_config/.boto',
-        'Windows': r'e:\b\build\site_config\.boto',
-      }[platform.system()]
-      env['AWS_CREDENTIAL_FILE'] = boto_config
-      env['BOTO_CONFIG'] = boto_config
-
     if GSUtil.GSUTIL_IS_SHELL_SCRIPT:
       gsutil_command = [GSUtil.GSUTIL_PATH]
     else:
       gsutil_command = [sys.executable, GSUtil.GSUTIL_PATH]
 
-    return run(gsutil_command + gsutil_args, env=env,
+    return run(gsutil_command + gsutil_args,
                shell=(GSUtil.GSUTIL_IS_SHELL_SCRIPT and
                       sys.platform == 'win32'))
 
   def upload(self, local_path, remote_path, recursive=False, 
              public=False, multithread=False):
     assert remote_path.startswith('gs://')
 
     if multithread:
       args = ['-m', 'cp']
     else:
@@ skipping 81 matching lines @@
 
   return checksum_filename
 
 def GetChannelFromName(name):
   """Get the channel from the name. Bleeding edge builders don't
       have a suffix."""
   channel_name = string.split(name, '-').pop()
   if channel_name in Channel.ALL_CHANNELS:
     return channel_name
   return Channel.BLEEDING_EDGE