Eliminate the need for code delete events in CPU profiler.

src/cpu-profiler.cc

Index: src/cpu-profiler.cc
diff --git a/src/cpu-profiler.cc b/src/cpu-profiler.cc
index bb480fc345bb0b5191620d0753c0431a035ca8d5..65490285e75fa87f01a337d43bcd4189059e3a40 100644
--- a/src/cpu-profiler.cc
+++ b/src/cpu-profiler.cc
@@ -137,16 +137,6 @@ void ProfilerEventsProcessor::CodeMoveEvent(Address from, Address to) {
 }
 
 
-void ProfilerEventsProcessor::CodeDeleteEvent(Address from) {
-  CodeEventsContainer evt_rec;
-  CodeDeleteEventRecord* rec = &evt_rec.CodeDeleteEventRecord_;
-  rec->type = CodeEventRecord::CODE_DELETE;
-  rec->order = ++enqueue_order_;
-  rec->start = from;
-  events_buffer_.Enqueue(evt_rec);
-}
-
-
 void ProfilerEventsProcessor::SharedFunctionInfoMoveEvent(Address from,
                                                           Address to) {
   CodeEventsContainer evt_rec;
@@ -425,7 +415,6 @@ void CpuProfiler::CodeMoveEvent(Address from, Address to) {
 
 
 void CpuProfiler::CodeDeleteEvent(Address from) {
-  Isolate::Current()->cpu_profiler()->processor_->CodeDeleteEvent(from);
 }