remove SignatureInfo class

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index 3f6e1090a05633df5c666dededd19ab0c969157b..61f37174012b598b3f24d9e2b67c8c061da15619 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -851,38 +851,8 @@ Local<FunctionTemplate> FunctionTemplate::New(
 
 
 Local<Signature> Signature::New(Isolate* isolate,
-                                Handle<FunctionTemplate> receiver, int argc,
-                                Handle<FunctionTemplate> argv[]) {
-  i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
-  LOG_API(i_isolate, "Signature::New");
-  ENTER_V8(i_isolate);
-  i::Handle<i::SignatureInfo> obj =
-      Utils::OpenHandle(*Signature::New(isolate, receiver));
-  if (argc > 0) {
-    i::Handle<i::FixedArray> args = i_isolate->factory()->NewFixedArray(argc);
-    for (int i = 0; i < argc; i++) {
-      if (!argv[i].IsEmpty())
-        args->set(i, *Utils::OpenHandle(*argv[i]));
-    }
-    obj->set_args(*args);
-  }
-  return Utils::ToLocal(obj);
-}
-
-
-Local<Signature> Signature::New(Isolate* isolate,
                                 Handle<FunctionTemplate> receiver) {
-  i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
-  LOG_API(i_isolate, "Signature::New");
-  ENTER_V8(i_isolate);
-  i::Handle<i::Struct> struct_obj =
-      i_isolate->factory()->NewStruct(i::SIGNATURE_INFO_TYPE);
-  // TODO(jochen): Replace SignatureInfo with FunctionTemplateInfo once the
-  // deprecated API is deleted.
-  i::Handle<i::SignatureInfo> obj =
-      i::Handle<i::SignatureInfo>::cast(struct_obj);
-  if (!receiver.IsEmpty()) obj->set_receiver(*Utils::OpenHandle(*receiver));
-  return Utils::ToLocal(obj);
+  return Utils::SignatureToLocal(Utils::OpenHandle(*receiver));
 }