Remove unnecessary files from unit_tests and browser_tests in windows/isolate.

chrome/browser_tests.isolate

 # 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.
 {
   'conditions': [
     ['OS=="linux"', {
       'variables': {
         'command': [
           '../testing/xvfb.py',
           '<(PRODUCT_DIR)',
@@ skipping 130 matching lines @@
           '<(PRODUCT_DIR)/osmesa.dll',
           '<(PRODUCT_DIR)/ppGoogleNaClPluginChrome.dll',
           '<(PRODUCT_DIR)/ppapi_tests.dll',
           '<(PRODUCT_DIR)/security_tests.dll',
           'tools/build/repack_locales.py',
         ],
         'isolate_dependency_untracked': [
           '../third_party/npapi/npspy/extern/plugin/',
           '../third_party/psyco_win32/psyco/',
           '../third_party/python_26/',
-          '<(PRODUCT_DIR)/gen/sdk/toolchain/win_x86_pnacl/newlib/bin/pydir/',
         ],
       },
     }],
   ],
 }