Revert of Fix JSON parser Handle leak

src/heap/heap.cc

Index: src/heap/heap.cc
diff --git a/src/heap/heap.cc b/src/heap/heap.cc
index 6d78b03a96e3379981ad6f57246dfafa3b8cd790..5af21e18c0df762e7efb97e2778e6e708ad8f066 100644
--- a/src/heap/heap.cc
+++ b/src/heap/heap.cc
@@ -618,7 +618,6 @@
   if (FLAG_gc_verbose) Print();
   if (FLAG_code_stats) ReportCodeStatistics("After GC");
 #endif
-  if (FLAG_check_handle_count) CheckHandleCount();
   if (FLAG_deopt_every_n_garbage_collections > 0) {
     // TODO(jkummerow/ulan/jarin): This is not safe! We can't assume that
     // the topmost optimized frame can be deoptimized safely, because it
@@ -5650,24 +5649,6 @@
 
 #endif
 
-class CheckHandleCountVisitor : public ObjectVisitor {
- public:
-  CheckHandleCountVisitor() : handle_count_(0) {}
-  ~CheckHandleCountVisitor() { CHECK(handle_count_ < 1000); }
-  void VisitPointers(Object** start, Object** end) {
-    handle_count_ += end - start;
-  }
-
- private:
-  ptrdiff_t handle_count_;
-};
-
-
-void Heap::CheckHandleCount() {
-  CheckHandleCountVisitor v;
-  isolate_->handle_scope_implementer()->Iterate(&v);
-}
-
 
 Space* AllSpaces::next() {
   switch (counter_++) {