remove route53 until https://github.com/certbot/certbot/pull/5781 or similar is merged

Signed-off-by: Zoey <zoey@z0ey.de>

rootfs/usr/local/nginx/conf/nginx.conf

@@ -67,6 +67,10 @@ http {
         '' "upgrade-insecure-requests";
     }
 
+    map $scheme $hsts_header {
+        https "max-age=63072000; includeSubDomains; preload";
+    }
+
     # Websocket
     map $http_upgrade $connection_upgrade {
         default upgrade;