Make the NaCl windows 64 bit binaries not depend on chrome targets.

chrome/tools/build/win/FILES.cfg

 # -*- python -*-
 # ex: set syntax=python:
 
 # Copyright (c) 2011 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.
 
 # This is a buildbot configuration file containing a tagged list of files
 # processed by the stage/archive scripts. The known tags are:
 #
@@ skipping 28 matching lines @@
     'filename': 'nacl64.exe',
     'arch': ['32bit', '64bit'],
     'buildtype': ['dev', 'official'],
   },
   {
     'filename': 'chrome.dll',
     'arch': ['32bit', '64bit'],
     'buildtype': ['dev', 'official'],
   },
   {
-    'filename': 'nacl64.dll',
-    'arch': ['32bit', '64bit'],
-    'buildtype': ['dev', 'official'],
-  },
-  {
     'filename': 'crash_service.exe',
     'arch': ['32bit', '64bit'],
     'buildtype': ['dev', 'official'],
   },
   {
     'filename': 'crash_service64.exe',
     'arch': ['32bit', '64bit'],
     'buildtype': ['dev', 'official'],
   },
   {
@@ skipping 324 matching lines @@
     'buildtype': ['dev', 'official'],
   },
   # Remoting files:
   {
     'filename': 'remoting-it2me.zip',
     'arch': ['32bit', '64bit'],
     'buildtype': ['dev', 'official'],
     'archive': 'remoting-it2me.zip',
   },
 ]