[api] Remove EmbedderReachableReferenceReporter

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index b7a5b2e4ec45e1642a6ad578e9f98604f490d806..37841e3ddff72fb9ba513e3fb4b191266619e8ce 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -812,6 +812,11 @@ i::Object** V8::CopyPersistent(i::Object** obj) {
   return result.location();
 }
 
+void V8::RegisterExternallyReferencedObject(i::Object** object,
+                                            i::Isolate* isolate) {
+  isolate->heap()->RegisterExternallyReferencedObject(object);
+}
+
 void V8::MakeWeak(i::Object** location, void* parameter,
                   int internal_field_index1, int internal_field_index2,
                   WeakCallbackInfo<void>::Callback weak_callback) {