advagg_resource_hints_preconnect multiple preconnect_support js inline scripts can be outputted

Need to prevent this.

<script type="text/javascript">
<!--//--><![CDATA[//><!--
var preconnect_support = false; try {if (document.createElement("link").relList.supports("preconnect")) {preconnect_support = true;}} catch (e) {} if (!preconnect_support) { var prefetch = document.createElement("link"); prefetch.href = "https://stats.g.doubleclick.net/robots.txt"; prefetch.rel="prefetch"; document.getElementsByTagName("head")[0].appendChild(prefetch);}
//--><!]]>
</script>
<script type="text/javascript">
<!--//--><![CDATA[//><!--
var preconnect_support = false; try {if (document.createElement("link").relList.supports("preconnect")) {preconnect_support = true;}} catch (e) {} if (!preconnect_support) { var prefetch = document.createElement("link"); prefetch.href = "https://stats.g.doubleclick.net/robots.txt"; prefetch.rel="prefetch"; document.getElementsByTagName("head")[0].appendChild(prefetch);}
//--><!]]>
</script>