Removed duplicate title

assets/404.html

@@ -13,7 +13,6 @@
     <meta name="theme-color" content="#0075BF">
     <meta name="msapplication-navbutton-color" content="#0075BF">
     <meta name="apple-mobile-web-app-status-bar-style" content="#0075BF">
-    <title>Error {{.Code}} | kuschku.de</title>
     <style>
         * {
             margin: 0;