Cleanup obsolete network for vault.

vault/docker-compose.yaml

@@ -3,8 +3,6 @@ version: "3.9"
 networks:
   proxy:
     external: true
-  internal:
-    external: true
 
 volumes:
   vault:
@@ -31,5 +29,4 @@ services:
       - "traefik.http.routers.vault-secure.tls.domains[0].main=cs-vault.ddnss.de"
       - "traefik.http.services.vault-secure.loadbalancer.server.port=80"
     networks:
-      - internal
       - proxy