Redundant nested state property

[lf94]

    "state": {
      "state": "unknown"
    }

Part of the larger:

[
  {
    "extra": {
      "type": "moonraker"
    },
    "hardware_configuration": {
      "type": "none"
    },
    "id": "string",
    "machine_type": "stereolithography",
    "make_model": {
      "manufacturer": "string",
      "model": "string",
      "serial": "string"
    },
    "max_part_volume": {
      "depth": 0,
      "height": 0,
      "width": 0
    },
    "progress": 0,
    "state": {
      "state": "unknown"
    }
  }
]