swagger: remove classic swarm "Node" field

This field is not part of the Docker API and only used
for classic (standalone) swarm.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

api/swagger.yaml

@@ -4942,9 +4942,6 @@ paths:
                 type: "string"
               LogPath:
                 type: "string"
-              Node:
-                description: "TODO"
-                type: "object"
               Name:
                 type: "string"
               RestartCount: