worker: remove redundant closing of child port

PR-URL: https://github.com/nodejs/node/pull/31555
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: David Carlier <devnexen@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

src/node_worker.cc

@@ -261,8 +261,6 @@ void Worker::Run() {
 
       {
         Context::Scope context_scope(env_->context());
-        if (child_port != nullptr)
-          child_port->Close();
         {
           Mutex::ScopedLock lock(mutex_);
           stopped_ = true;