chore(demo): remove custom.js from demo site

demo/custom.js

@@ -1,46 +0,0 @@
-// https://developers.google.com/analytics/devguides/collection/analyticsjs/
-(function(i, s, o, g, r, a, m) {
-  i["GoogleAnalyticsObject"] = r;
-  (i[r] =
-    i[r] ||
-    function() {
-      (i[r].q = i[r].q || []).push(arguments);
-    }),
-    (i[r].l = 1 * new Date());
-  (a = s.createElement(o)), (m = s.getElementsByTagName(o)[0]);
-  a.async = 1;
-  a.src = g;
-  m.parentNode.insertBefore(a, m);
-})(
-  window,
-  document,
-  "script",
-  "https://www.google-analytics.com/analytics.js",
-  "ga"
-);
-
-ga("create", "UA-128338979-1", "auto");
-ga("send", "pageview");
-
-function getSearch() {
-  return window.location.search;
-}
-
-let search = getSearch();
-
-function updateSearch() {
-  let newSearch = getSearch();
-  if (newSearch !== search) {
-    search = newSearch;
-    ga("set", "page", window.location.pathname + window.location.search);
-  }
-}
-
-setInterval(function() {
-  updateSearch();
-  ga("send", {
-    hitType: "event",
-    eventCategory: "heartbeat",
-    eventAction: "ping"
-  });
-}, 15 * 1000);

demo/karma.yaml

@@ -32,8 +32,6 @@ alertAcknowledgement:
 annotations:
   hidden:
     - help
-custom:
-  js: /custom.js
 debug: true
 filters:
   default: