message: upload remove index
diff: @@ -145,7 +145,7 @@ export default class Upload extends Component {
  fileList.splice(index, 1)
  this.setState({fileList})
  }
  - const ret = onRemove(file, fileList)
  + const ret = onRemove(file, fileList, index)
  if (ret === true) {
  doRemove()
  } else if (ret && typeof ret.then === 'function') {
  