Remove button to old page

src/videoag/site/DefaultLayout.tsx

 import Link from "next/link";
 import type React from "react";
-import { MouseEvent, useEffect, useState } from "react";
+import { useEffect, useState } from "react";
 import { useRouter } from "next/router";
 import { DropdownButton } from "react-bootstrap";
 import Collapse from "react-bootstrap/Collapse";
@@ -147,16 +147,6 @@ function NavBar({ status }: { status?: GetStatusResponse }) {
     const toggleNavbar = () => {
         setNavbarOpen((o) => !o);
     };
-
-    const switchToOldSite = (event: MouseEvent) => {
-        if (window.location.pathname.indexOf(basePath) !== -1) {
-            event.preventDefault();
-            let newPath = window.location.pathname;
-            if (!newPath.startsWith("/")) newPath = "/" + newPath;
-            window.location.href = "https://video.fsmpi.rwth-aachen.de" + newPath;
-        }
-    };
-
     const isHome = useRouter().pathname === "/";
 
     return (
@@ -197,19 +187,6 @@ function NavBar({ status }: { status?: GetStatusResponse }) {
                         url="/feedback"
                         className="flex-grow-1 text-center"
                     />
-                    <a
-                        className={
-                            "nav-link p-2 rounded flex-grow-1 text-center d-flex align-items-center justify-content-center"
-                        }
-                        href={"/"}
-                        onClick={switchToOldSite}
-                        style={{ color: "#c66" }}
-                    >
-                        <span
-                            aria-hidden="true"
-                            className={"me-1 bi bi-arrow-down-left-square"}
-                        ></span>
-                    </a>
                 </div>
 
                 <button
@@ -280,18 +257,6 @@ function NavBar({ status }: { status?: GetStatusResponse }) {
                                         Feedback
                                     </NavBarIcon>
                                 </li>
-                                <a
-                                    className={"nav-link p-2 rounded mx-1"}
-                                    href={"https://video.fsmpi.rwth-aachen.de"}
-                                    onClick={switchToOldSite}
-                                    style={{ color: "#c66" }}
-                                >
-                                    <span
-                                        aria-hidden="true"
-                                        className={"me-1 bi bi-arrow-down-left-square"}
-                                    ></span>
-                                    Zur alten Seite
-                                </a>
                             </ul>
 
                             <div className="flex-fill d-none d-lg-block" />