comment out unused uiRootPath variable assignment

Author: mojavelinux

src/partials/head-scripts.hbs

@@ -2,4 +2,4 @@
     <script async src="https://www.googletagmanager.com/gtag/js?id={{this}}"></script>
     <script>function gtag(){dataLayer.push(arguments)};window.dataLayer=window.dataLayer||[];gtag('js',new Date());gtag('config','{{this}}')</script>
     {{/with}}
-    <script>var uiRootPath = '{{{uiRootPath}}}'</script>
+    {{!-- <script>var uiRootPath = '{{{uiRootPath}}}'</script> --}}