Remove VM Stats

runtime/bin/vmstats_impl_win.cc

-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-#include "platform/globals.h"
-#if defined(TARGET_OS_WINDOWS)
-
-#include "bin/vmstats_impl.h"
-
-#include <signal.h>  // NOLINT
-
-
-namespace dart {
-namespace bin {
-
-static void sig_handler(int sig) {
-  if (sig == SIGBREAK) {
-    VmStats::DumpStack();
-  }
-}
-
-void VmStats::Initialize() {
-  // Enable SIGBREAK (ctrl-break) stack dumps.
-  if (signal(SIGBREAK, sig_handler) == SIG_ERR) {
-    perror("Adding SIGBREAK signal handler failed");
-  }
-}
-
-}  // namespace bin
-}  // namespace dart
-
-#endif  // defined(TARGET_OS_WINDOWS)