Remove wrongly typed space.

Author: nickygerritsen

provision-contest/ansible/roles/domserver/templates/nginx-domjudge.conf.j2

@@ -67,7 +67,7 @@ server {
 	location / {
 		proxy_pass https://domjudge-loadbalanced;
 		proxy_http_version 1.1;
-		 proxy_set_header Connection "";
+		proxy_set_header Connection "";
 		proxy_set_header X-Forwarded-Proto $scheme;
 		proxy_set_header Host $http_host;
 		proxy_set_header X-Real-IP $remote_addr;