Revert of Swarm cc_unittests.

cc/cc_tests.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
     'cc_unit_tests_source_files': [
       'animation/animation_unittest.cc',
       'animation/keyframed_animation_curve_unittest.cc',
@@ skipping 426 matching lines @@
             'dependencies': [
               'cc_perftests',
             ],
             'variables': {
               'test_suite_name': 'cc_perftests',
             },
             'includes': [ '../build/apk_test.gypi' ],
           },
         ],
       }
-    ],
-    ['test_isolation_mode != "noop"', {
-      'targets': [
-        {
-          'target_name': 'cc_unittests_run',
-          'type': 'none',
-          'dependencies': [
-            'cc_unittests',
-          ],
-          'includes': [
-            '../build/isolate.gypi',
-          ],
-          'sources': [
-            'cc_unittests.isolate',
-          ],
-        },
-      ],
-    }],
+    ]
   ],
 }