message: Remove subscriptionId uuid format for IotCentral
diff: "in": "path",
  "description": "The subscription identifier.",
  "required": true,
  - "type": "string",
  - "format": "uuid"
  + "type": "string"
  },
  "api-version": {
  "name": "api-version",
  - "enum": [
  - "2017-07-01-privatepreview"
  - ],
  "in": "query",
  "description": "The version of the API.",
  "required": true,
  - "type": "string",
  - "minLength": 10
  + "type": "string"
  },
  "resourceGroupName": {
  "name": "resourceGroupName",
  "description": "The name of the resource group that contains the IoT Central application.",
  "required": true,
  "type": "string",
  - "x-ms-parameter-location": "method",
  - "minLength": 1,
  - "maxLength": 64
  + "x-ms-parameter-location": "method"
  },
  "resourceName": {
  "name": "resourceName",
  "required": true,
  "type": "string",
  "x-ms-parameter-location": "method",
  - "minLength": 1,
  - "maxLength": 100,
  "x-comment": "validation must match #/definitions/Resource"
  }
  }
  