fix: consolidate real ip header configs

roles/nextcloud/templates/nginx-nextcloud.conf

@@ -34,10 +34,6 @@ server {
     proxy_connect_timeout 300;
     proxy_send_timeout 900; 
 
-    set_real_ip_from  192.168.122.1;
-    real_ip_header    X-Forwarded-For;
-    real_ip_recursive on;
-
     location = /robots.txt {
         allow all;
         log_not_found off;