removeFile (uuid) {
    const originalLength = this.files.length
    this.files = this.files.filter(file => file && file.uuid !== uuid)
    if (Array.isArray(this.results)) {
      this.results = this.results.filter(file => file && file.__id !== uuid)
    }
    this.context.performValidation()
    if (window && this.fileList instanceof FileList && this.supportsDataTransfers) {
      const transfer = new DataTransfer()
      this.files.forEach(file => transfer.items.add(file.file))
      this.fileList = transfer.files
      this.input.files = this.fileList
    } else {
      this.fileList = this.fileList.filter(file => file && file.__id !== uuid)
    }
    if (originalLength > this.files.length) {
      this.context.rootEmit('file-removed', this.files)
    }
  }
Remove a file from the uploader (and the file list)
@param {string} uuid