Remove unused parts of legacy main.js

aleksis/core/static/js/main.js

@@ -162,13 +162,6 @@ $(document).ready(function () {
     $("#" + $(this).data("preview")).css("color", $(this).val());
   });
 
-  // Initialise auto-completion for search bar
-  window.autocomplete = new Autocomplete({
-    minimum_length: 2,
-    url: JSON.parse($("#search-snippet-url").text()),
-  });
-  window.autocomplete.setup();
-
   // Initialize text collapsibles [MAT, own work]
   $(".text-collapsible").addClass("closed").removeClass("opened");
 
@@ -180,37 +173,5 @@ $(document).ready(function () {
     var el = $(e.target).parent();
     el.addClass("closed").removeClass("opened");
   });
-
-  // Initialize the service worker
-  if ("serviceWorker" in navigator) {
-    console.debug("Start registration of service worker.");
-    navigator.serviceWorker
-      .register("/serviceworker.js", {
-        scope: "/",
-      })
-      .then(function () {
-        console.debug("Service worker has been registered.");
-      })
-      .catch(function () {
-        console.debug("Service worker registration has failed.");
-      });
-  }
 });
 
-// Show notice if serviceworker broadcasts that the current page comes from its cache
-const channel = new BroadcastChannel("cache-or-not");
-channel.addEventListener("message", (event) => {
-  if (
-    $("main").attr("id") !== "mainReduced" &&
-    event.data &&
-    !$("#cache-alert").length
-  ) {
-    $("main").prepend(
-      '<div id="cache-alert" class="alert warning"><p><i class="material-icons iconify left" data-icon="mdi:alert-outline"></i>' +
-        gettext(
-          "This page may contain outdated information since there is no internet connection."
-        ) +
-        "</p> </div>"
-    );
-  }
-});