Remove profiler thread related methods from RuntimeProfiler

src/platform-openbsd.cc

Index: src/platform-openbsd.cc
diff --git a/src/platform-openbsd.cc b/src/platform-openbsd.cc
index f4d366bbdf3f942d1c372c6b7f50d1589144118b..a53e30756d0ea4aae649c30972b18092381d3d63 100644
--- a/src/platform-openbsd.cc
+++ b/src/platform-openbsd.cc
@@ -838,7 +838,7 @@ class SignalSender : public Thread {
     ScopedLock lock(mutex_);
     SamplerRegistry::RemoveActiveSampler(sampler);
     if (SamplerRegistry::GetState() == SamplerRegistry::HAS_NO_SAMPLERS) {
-      RuntimeProfiler::StopRuntimeProfilerThreadBeforeShutdown(instance_);
+      instance_->Join();
       delete instance_;
       instance_ = NULL;
       RestoreSignalHandler();
@@ -855,9 +855,8 @@ class SignalSender : public Thread {
       if (state == SamplerRegistry::HAS_CPU_PROFILING_SAMPLERS) {
         if (!signal_handler_installed_) InstallSignalHandler();
         SamplerRegistry::IterateActiveSamplers(&DoCpuProfile, this);
-      } else {
-        if (signal_handler_installed_) RestoreSignalHandler();
-        if (RuntimeProfiler::WaitForSomeIsolateToEnterJS()) continue;
+      } else if (signal_handler_installed_) {
+        RestoreSignalHandler();
       }
       Sleep();  // TODO(svenpanne) Figure out if OS:Sleep(interval_) is enough.
     }