Revert "Feat(nginx): Add support for IPv6" (#12916)

This reverts commit e9d9872.

Author: kiblik

nginx/nginx.conf

@@ -25,7 +25,6 @@ http {
   server {
     server_tokens off;
     listen 8080;
-    listen [::]:8080;
 
     gzip on;
     gzip_types      application/atom+xml  application/geo+json  application/javascript  application/x-javascript  application/json  application/ld+json  application/manifest+json  application/rdf+xml  application/rss+xml  application/xhtml+xml  application/xml  font/eot  font/otf  font/ttf  image/svg+xml  text/css  text/javascript text/plain  text/xml;

nginx/nginx_TLS.conf

@@ -20,7 +20,6 @@ http {
   }
   server {
       listen 8080;
-      listen [::]:8080;
       location / {
           return 301 https://$host:8443$request_uri;
       }
@@ -33,7 +32,6 @@ http {
   server {
     server_tokens off;
     listen 8443 ssl;
-    listen [::]:8443 ssl;
     server_name your.servername.com;
     ssl_certificate /etc/nginx/ssl/nginx.crt;
     ssl_certificate_key /etc/nginx/ssl/nginx.key;