Unify symbols sharing across native scripts and runtime.

src/heap/heap.cc

Index: src/heap/heap.cc
diff --git a/src/heap/heap.cc b/src/heap/heap.cc
index eb5a60970599c8ce48e019cde5d023b55598edb0..fbffd9f18b9c6a789c4be04b1d9ea3cd65b14e3c 100644
--- a/src/heap/heap.cc
+++ b/src/heap/heap.cc
@@ -3392,19 +3392,6 @@ void Heap::CreateInitialObjects() {
 }
 
 
-void Heap::AddPrivateGlobalSymbols(Handle<Object> private_intern_table) {
-#define ADD_SYMBOL_TO_PRIVATE_INTERN_TABLE(name_arg)                     \
-  {                                                                      \
-    Handle<Symbol> symbol(Symbol::cast(roots_[k##name_arg##RootIndex])); \
-    Handle<String> name_arg##d(String::cast(symbol->name()));            \
-    JSObject::AddProperty(Handle<JSObject>::cast(private_intern_table),  \
-                          name_arg##d, symbol, NONE);                    \
-  }
-  PRIVATE_SYMBOL_LIST(ADD_SYMBOL_TO_PRIVATE_INTERN_TABLE)
-#undef ADD_SYMBOL_TO_PRIVATE_INTERN_TABLE
-}
-
-
 bool Heap::RootCanBeWrittenAfterInitialization(Heap::RootListIndex root_index) {
   switch (root_index) {
     case kStoreBufferTopRootIndex: