Revert "Send SIGPROF signals on the profiler event processor thread"

src/platform-openbsd.cc

Index: src/platform-openbsd.cc
diff --git a/src/platform-openbsd.cc b/src/platform-openbsd.cc
index ccccedcdb989f6b0e7eff00ecf2f6c7ec7f00855..66eac22aa50e5deae0dd2ef2bec3d4e7ff7b8770 100644
--- a/src/platform-openbsd.cc
+++ b/src/platform-openbsd.cc
@@ -955,21 +955,4 @@ void Sampler::Stop() {
 }
 
 
-bool Sampler::CanSampleOnProfilerEventsProcessorThread() {
-  return false;
-}
-
-
-void Sampler::DoSample() {
-}
-
-
-void Sampler::StartProfiling() {
-}
-
-
-void Sampler::StopProfiling() {
-}
-
-
 } }  // namespace v8::internal