message: Remove unofficial ARIA prop `aria-description`
  Fixes graphql/graphiql#995
diff: @@ -32,8 +32,7 @@ export class ToolbarButton extends React.Component {
  className={'toolbar-button' + (error ? ' error' : '')}
  onClick={this.handleClick}
  title={error ? error.message : this.props.title}
  - aria-invalid={error ? 'true' : 'false'}
  - aria-description={error ? error.message : null}>
  + aria-invalid={error ? 'true' : 'false'}>
  {this.props.label}
  </button>
  );
  