Remove nginx vhost config

vars/main.yml

@@ -7,14 +7,4 @@ nginx:
   upstreams:
     grafana:
       server:
-        - address: "unix:/var/run/grafana/webui.sock"
+      - address: "unix:/var/run/grafana/webui.sock"
-  vhosts:
-    grafana:
-      backend: "http://grafana"
-      default_server: True
-      listen:
-        ssl: True
-      locations:
-      - match: /metrics
-        custom:
-        - return 403