message: remove linkStyle
diff: @@ -9,12 +9,11 @@ injectGlobal(sass`
  @import "primer-buttons/index.scss";
  `)
  -function Button({is: Tag, children, size, linkStyle, grouped, scheme, onClick, disabled, className, ...rest}) {
  +function Button({is: Tag, children, size, grouped, scheme, onClick, disabled, className, ...rest}) {
  const classes = classnames(
  className,
  + 'btn',
  {
  - btn: !linkStyle,
  - 'btn-link': linkStyle,
  'btn-sm': size === 'sm',
  'btn-large': size === 'large',
  'BtnGroup-item': grouped
  @@ -38,7 +37,6 @@ Button.propTypes = {
  disabled: PropTypes.bool,
  grouped: PropTypes.bool,
  is: PropTypes.oneOfType([PropTypes.oneOf(['button', 'a', 'summary', 'input']), PropTypes.func]),
  - linkStyle: PropTypes.bool,
  onClick: PropTypes.func,
  scheme: PropTypes.string,
  size: PropTypes.oneOf(['sm', 'large'])
  