Issue 245 - Unify SSL configuration for all servers

modules/updateserver/files/site.conf

-server {
-  listen 80 default_server;
-  listen [::]:80 default_server;
-  server_name update.adblockplus.org;
-  location / {
-    rewrite (.*) https://update.adblockplus.org$1 permanent;
-  }
+error_page 500 502 503 504 /50x.html;
+location = /50x.html {
+  root html;
 }
 
-server {
-  listen 443 ssl default_server;
-  listen [::]:443 ssl default_server;
-  server_name update.adblockplus.org;
-  ssl_certificate sites-available/adblockplus.org_sslcert.pem;
-  ssl_certificate_key sites-available/adblockplus.org_sslcert.key;
-
-  error_page 500 502 503 504 /50x.html;
-  location = /50x.html {
-    root html;
-  }
-
-  access_log /var/log/nginx/access_log_update main;
-  keepalive_timeout 0;
-  root /var/www/update;
-}
+keepalive_timeout 0;
+root /var/www/update;