Revert of Fix sbox_validation_tests & Make isolate_driver.py include the executable itself

sync/sync_unit_tests.isolate

 # Copyright 2015 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=="android"', {
       'variables': {
         'files': [
           '<(PRODUCT_DIR)/locales/en-US.pak',
         ],
@@ skipping 11 matching lines @@
           '--tsan=<(tsan)',
         ],
         'files': [
           '../chrome/test/data/sync/',
           '../net/tools/testserver/',
           '../testing/test_env.py',
           '../third_party/pyftpdlib/',
           '../third_party/pywebsocket/',
           '../third_party/tlslite/',
           '<(PRODUCT_DIR)/pyproto/google/',
+          '<(PRODUCT_DIR)/sync_unit_tests<(EXECUTABLE_SUFFIX)',
         ],
       },
     }],
   ],
   'includes': [
     '../base/base.isolate',
   ],
 }