Remove unused code from runtime profiler.

src/runtime-profiler.h

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 76 matching lines @@
   // Stops the runtime profiler thread when profiling support is being
   // turned off.
   static void StopRuntimeProfilerThreadBeforeShutdown(Thread* thread);
 
   void UpdateSamplesAfterScavenge();
   void RemoveDeadSamples();
   void UpdateSamplesAfterCompact(ObjectVisitor* visitor);
 
  private:
   static const int kSamplerWindowSize = 16;
-  static const int kStateWindowSize = 128;
-
-  enum SamplerState {
-    IN_NON_JS_STATE = 0,
-    IN_JS_STATE = 1
-  };
 
   static void HandleWakeUp(Isolate* isolate);
 
   void Optimize(JSFunction* function);
 
   void AttemptOnStackReplacement(JSFunction* function);
 
   void ClearSampleBuffer();
 
   void ClearSampleBufferNewSpaceEntries();
@@ skipping 59 matching lines @@
 
 void RuntimeProfiler::IsolateExitedJS(Isolate* isolate) {
   Atomic32 new_state = NoBarrier_AtomicIncrement(&state_, -1);
   ASSERT(new_state >= 0);
   USE(new_state);
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_RUNTIME_PROFILER_H_