Scripts loaded twice

Javascript assets seems to be imported twice, once with `defer` attribute, once without.

Here is an extract of the SSR response with a newly created project :

```html

window.__INITIAL_STATE__ = {};
(function () {
var s;
(s = document.currentScript || document.scripts[document.scripts.length - 1]).parentNode.removeChild(s);
}());

```

Those with `defer` attribute seems to be added with the `renderScripts()` function in `vue-server-renderer` but I can't find where the other script are added.