Remove deprecation warning from create_nmf.py

native_client_sdk/src/tools/create_nmf.py

 #!/usr/bin/env python
 # Copyright (c) 2012 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.
 
 """Tool for automatically creating .nmf files from .nexe/.pexe executables.
 
 As well as creating the nmf file this tool can also find and stage
 any shared libraries dependencies that the executables might have.
 """
@@ skipping 564 matching lines @@
     parser.error('Bad --extra-files (-x) argument syntax')
 
   remap = {}
   for ren in options.name:
     parts = ren.split(',')
     if len(parts) != 2:
       parser.error('Expecting --name=<orig_arch.so>,<new_name.so>')
     remap[parts[0]] = parts[1]
 
   if options.path_prefix:
-    sys.stderr.write('warning: option -P/--path-prefix is deprecated.\n')
     options.lib_prefix = options.path_prefix
 
   for libpath in options.lib_path:
     if not os.path.exists(libpath):
       sys.stderr.write('Specified library path does not exist: %s\n' % libpath)
     elif not os.path.isdir(libpath):
       sys.stderr.write('Specified library is not a directory: %s\n' % libpath)
 
   if not options.no_default_libpath:
     # Add default libraries paths to the end of the search path.
@@ skipping 39 matching lines @@
 if __name__ == '__main__':
   try:
     rtn = main(sys.argv[1:])
   except Error, e:
     sys.stderr.write('%s: %s\n' % (os.path.basename(__file__), e))
     rtn = 1
   except KeyboardInterrupt:
     sys.stderr.write('%s: interrupted\n' % os.path.basename(__file__))
     rtn = 1
   sys.exit(rtn)