message: undo changes which are no longer needed
diff: @@ -24,7 +24,6 @@ import Tooltip from './Tooltip';
  interface ITooltipProps extends IProps {
  title: string;
  - tooltip?: React.ReactNode;
  tooltipClassName?: string;
  }
  @@ -53,7 +52,7 @@ export default class AccessibleTooltipButton extends React.PureComponent<IToolti
  };
  render() {
  - const {title, children, tooltip, ...props} = this.props;
  + const {title, children, ...props} = this.props;
  const tooltipClassName = classnames(
  "mx_AccessibleTooltipButton_tooltip",
  this.props.tooltipClassName,
  @@ -62,7 +61,7 @@ export default class AccessibleTooltipButton extends React.PureComponent<IToolti
  const tip = this.state.hover ? <Tooltip
  className="mx_AccessibleTooltipButton_container"
  tooltipClassName={tooltipClassName}
  - label={tooltip || title}
  + label={title}
  /> : <div />;
  return (
  <AccessibleButton {...props} onMouseOver={this.onMouseOver} onMouseOut={this.onMouseOut} aria-label={title}>
  