Remove env logic from cros_mark_as.

cros_mark_as_stable.py

 #!/usr/bin/python
 
 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """This module uprevs a given package's ebuild to the next revision."""
 
 
 import fileinput
@@ skipping 52 matching lines @@
   """Verbose print function."""
   if gflags.FLAGS.verbose:
     Info(message)
 
 
 def _CleanStalePackages(board, package_array):
     """Cleans up stale package info from a previous build."""
     Info('Cleaning up stale packages %s.' % package_array)
     unmerge_board_cmd = ['emerge-%s' % board, '--unmerge']
     unmerge_board_cmd.extend(package_array)
-    RunCommand(unmerge_board_cmd, env=env)
+    RunCommand(unmerge_board_cmd)
 
     unmerge_host_cmd = ['sudo', 'emerge', '--unmerge']
     unmerge_host_cmd.extend(package_array)
-    RunCommand(unmerge_host_cmd, env=env)
+    RunCommand(unmerge_host_cmd)
 
     RunCommand(['eclean-%s' % board, '-d', 'packages'], redirect_stderr=True)
     RunCommand(['sudo', 'eclean', '-d', 'packages'], redirect_stderr=True)
 
 
 def _BestEBuild(ebuilds):
   """Returns the newest EBuild from a list of EBuild objects."""
   from portage.versions import vercmp
   winner = ebuilds[0]
   for ebuild in ebuilds[1:]:
@@ skipping 432 matching lines @@
           raise
 
       if revved_packages:
         _CleanStalePackages(gflags.FLAGS.board, revved_packages)
       else:
         work_branch.Delete()
 
 
 if __name__ == '__main__':
   main(sys.argv)