Remove duplicate event listener code

Author: chidozieononiwu

src/dotnet/APIView/APIViewWeb/Client/src/navbar.ts

@@ -1,12 +1,5 @@
-import Split from "split.js";
 import { updatePageSettings } from "./helpers";
 
-addEventListener("load", () => {
-    $(".nav-list-toggle").click(function () {
-        $(this).parents(".nav-list-group").first().toggleClass("nav-list-collapsed");
-    });
-});
-
 $(() => {
     const themeSelector = $( '#theme-selector' );