diff --git a/helper/ArticlesHelper.php b/helper/ArticlesHelper.php
deleted file mode 100644
index bfe8f69..0000000
--- a/helper/ArticlesHelper.php
+++ /dev/null
@@ -1,19 +0,0 @@
-<?php
-
-class ArticlesHelper {
-
-    static function getRequestedLanguage(): array {
-        list($lang) = input('lang');
-        $pl = null;
-        $default_explicitly_requested = false;
-        if ($lang) {
-            $pl = PostLanguage::tryFrom($lang);
-            if ($pl && $pl == PostLanguage::getDefault())
-                $default_explicitly_requested = true;
-        }
-        if (!$pl)
-            $pl = PostLanguage::getDefault();
-        return [$pl, $default_explicitly_requested];
-    }
-
-}
\ No newline at end of file
diff --git a/htdocs/sitemap.xml b/htdocs/sitemap.xml
deleted file mode 100644
index bd409d8..0000000
--- a/htdocs/sitemap.xml
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
-    <url>
-        <loc>https://4in1.ws/</loc>
-        <changefreq>weekly</changefreq>
-    </url>
-    <url>
-        <loc>https://4in1.ws/info/</loc>
-        <changefreq>weekly</changefreq>
-    </url>
-    <url>
-        <loc>https://4in1.ws/files/</loc>
-        <changefreq>weekly</changefreq>
-    </url>
-    <url>
-        <loc>https://4in1.ws/updates/</loc>
-        <changefreq>weekly</changefreq>
-    </url>
-</urlset>
\ No newline at end of file