Remove sandbox on Windows.

sandbox/win/src/sync_policy_test.h

Index: sandbox/win/src/sync_policy_test.h
diff --git a/sandbox/win/src/sync_policy_test.h b/sandbox/win/src/sync_policy_test.h
deleted file mode 100644
index 4f354b35be6c4043c63aa2e5ec664d52fa4bcef5..0000000000000000000000000000000000000000
--- a/sandbox/win/src/sync_policy_test.h
+++ /dev/null
@@ -1,18 +0,0 @@
-// 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.
-
-#ifndef SANDBOX_WIN_SRC_SYNC_POLICY_TEST_H_
-#define SANDBOX_WIN_SRC_SYNC_POLICY_TEST_H_
-
-#include "sandbox/win/tests/common/controller.h"
-
-namespace sandbox {
-
-// Opens the named event received on argv[1]. The requested access is
-// EVENT_ALL_ACCESS if argv[0] starts with 'f', or SYNCHRONIZE otherwise.
-SBOX_TESTS_COMMAND int Event_Open(int argc, wchar_t **argv);
-
-}  // namespace sandbox
-
-#endif  // SANDBOX_WIN_SRC_SYNC_POLICY_TEST_H_