Update isolate.gypi to support Swarming + move .isolate files

webrtc/modules/audio_coding/neteq/neteq.gypi

 # Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 {
   'variables': {
@@ skipping 181 matching lines @@
           'targets': [
             {
               'target_name': 'audio_decoder_unittests_apk_target',
               'type': 'none',
               'dependencies': [
                 '<(apk_tests_path):audio_decoder_unittests_apk',
               ],
             },
           ],
         }],
-        ['test_isolation_mode != "noop"', {
-          'targets': [
-            {
-              'target_name': 'audio_decoder_unittests_run',
-              'type': 'none',
-              'dependencies': [
-                'audio_decoder_unittests',
-              ],
-              'includes': [
-                '../../../build/isolate.gypi',
-              ],
-              'sources': [
-                'audio_decoder_unittests.isolate',
-              ],
-            },
-          ],
-        }],
       ],
     }], # include_tests
   ], # conditions
 }