Revert r32930 (Add more timing information in the VM to track time...)

runtime/vm/benchmark_test.cc

 // Copyright (c) 2012, 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 "vm/benchmark_test.h"
 
 #include "bin/builtin.h"
 #include "bin/file.h"
 
 #include "platform/assert.h"
@@ skipping 19 matching lines @@
   }
 }
 
 
 //
 // Measure compile of all functions in dart core lib classes.
 //
 BENCHMARK(CorelibCompileAll) {
   bin::Builtin::SetNativeResolver(bin::Builtin::kBuiltinLibrary);
   bin::Builtin::SetNativeResolver(bin::Builtin::kIOLibrary);
-  NativeToVmTimerScope scope_timer(Isolate::Current());
   Timer timer(true, "Compile all of Core lib benchmark");
   timer.Start();
   const Error& error = Error::Handle(benchmark->isolate(),
                                      Library::CompileAll());
   if (!error.IsNull()) {
     OS::PrintErr("Unexpected error in CorelibCompileAll benchmark:\n%s",
                  error.ToErrorCString());
   }
   EXPECT(error.IsNull());
   timer.Stop();
@@ skipping 446 matching lines @@
   for (intptr_t i = 0; i < kLoopCount; i++) {
     Dart_ExitIsolate();
     Dart_EnterIsolate(isolate);
   }
   timer.Stop();
   int64_t elapsed_time = timer.TotalElapsedTime();
   benchmark->set_score(elapsed_time);
 }
 
 }  // namespace dart