remove 404 sitemaps (#3165)

Author: alex-fusionauth

Diff for: astro/public/sitemap-all.xml

@@ -6,10 +6,4 @@
   <sitemap>
     <loc>https://fusionauth.io/sitemap-index.xml</loc>
   </sitemap>
-  <sitemap>
-    <loc>https://fusionauth.io/docs/sitemap.xml</loc>
-  </sitemap>
-  <sitemap>
-    <loc>https://fusionauth.io/how-to/sitemap.xml</loc>
-  </sitemap>
 </sitemapindex>