Wire up fake window.Signal.HTML because it's captured on load

test/styleguide/legacy_bridge.js

@@ -24,6 +24,9 @@ window.libphonenumber = {
 };
 
 window.Signal = {};
+window.Signal.HTML = {
+  render: thing => thing,
+};
 window.Signal.Backup = {};
 window.Signal.Crypto = {};
 window.Signal.Logs = {};

ts/styleguide/StyleGuideUtil.ts

@@ -68,8 +68,6 @@ const urlOptions = qs.parse(query);
 const theme = urlOptions.theme || 'android';
 const locale = urlOptions.locale || 'en';
 
-import HTML from '../ts/html';
-
 // @ts-ignore
 import localeMessages from '../../_locales/en/messages.json';
 
@@ -100,7 +98,6 @@ parent.moment.locale(locale);
 parent.React = React;
 parent.ReactDOM = ReactDOM;
 
-parent.Signal.HTML = HTML;
 parent.Signal.Components = {
   Quote,
 };