Remove "nacl_defines" from the GYP build.

components/components_tests.gyp

 # Copyright 2014 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.
 
 {
   'variables': {
     # This turns on e.g. the filename-based detection of which
     # platforms to include source files on (e.g. files ending in
     # _mac.h or _mac.cc are only compiled on MacOSX).
     'chromium_code': 1,
@@ skipping 567 matching lines @@
               ],
               'conditions': [
                 ['configuration_policy==1', {
                   'sources/': [
                     ['include', '^policy/'],
                   ],
                 }],
               ],
             }],
             ['disable_nacl==0', {
-              'includes': [
-                'nacl/nacl_defines.gypi',
-              ],
-              'defines': [
-                '<@(nacl_defines)',
-              ],
               'sources': [
                 'nacl/browser/nacl_file_host_unittest.cc',
                 'nacl/browser/nacl_process_host_unittest.cc',
                 'nacl/browser/nacl_validation_cache_unittest.cc',
                 'nacl/browser/pnacl_host_unittest.cc',
                 'nacl/browser/pnacl_translation_cache_unittest.cc',
                 'nacl/browser/test_nacl_browser_delegate.cc',
                 'nacl/zygote/nacl_fork_delegate_linux_unittest.cc',
               ],
               'dependencies': [
@@ skipping 456 matching lines @@
             '../build/isolate.gypi',
           ],
           'sources': [
             'components_unittests.isolate',
           ],
         },
       ],
     }],
   ],
 }