refactor(servers_config): remove unused loop

nginx/servers_config.sls

     - clean: {{ nginx.servers.purge_servers_config }}
 {%- endif %}
 
-# Manage the actual server files
-{% for server, settings in nginx.servers.managed.items() %}
-{% endfor %}
-
 # Managed enabled/disabled state for servers
 {% for server, settings in nginx.servers.managed.items() %}
 {% set conf_state_id = 'server_conf_' ~ loop.index0 %}