url: do not use HandleScope in ToObject

It is not needed / invalidates the returned value unlike EscapableHandleScope

PR-URL: #14096
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

Author: bmeck

src/node_url.cc

@@ -2085,7 +2085,6 @@ static void DomainToUnicode(const FunctionCallbackInfo<Value>& args) {
 const Local<Value> URL::ToObject(Environment* env) const {
   Isolate* isolate = env->isolate();
   Local<Context> context = env->context();
-  HandleScope handle_scope(isolate);
   Context::Scope context_scope(context);
 
   const Local<Value> undef = Undefined(isolate);