message: Render nothin rather than an empty div
diff: @@ -73,7 +73,7 @@ export default class AccessibleTooltipButton extends React.PureComponent<IToolti
  tooltipClassName={classNames("mx_AccessibleTooltipButton_tooltip", tooltipClassName)}
  label={tooltip || title}
  yOffset={yOffset}
  - /> : <div />;
  + /> : null;
  return (
  <AccessibleButton
  {...props}
  