Method unregister_notifier

gjs/context.cpp:409–413

}

void GjsContextPrivate::unregister_notifier(DestroyNotify notify_func,
                                            void* data) {
    auto target = std::make_pair(notify_func, data);
    m_destroy_notifications.erase(target);
}

void GjsContextPrivate::dispose() {
    if (m_cx) {