Remove the railroad shortcode

This partial moved to railroad-diagrams. Except it's pissing me off. 🙃

themes/platters/layouts/shortcodes/scripts/railroad.html

@@ -1,8 +0,0 @@
-{{ $parentID := .Parent.Get "id" -}}
-{{ $narrowOnly := not (not (.Get "narrow")) | default false }}
-<script defer type="module">
-    import { railroadDiagram } from {{ (partial "resources/railroad_utils.html" .).RelPermalink }};
-    railroadDiagram(rr => {
-        {{ .Inner | safeJS }}
-    }, "{{ $parentID }}", {{ cond $narrowOnly "true" "false" | safeJS }});
-</script>