message: Update CloseButton component
diff: @@ -4,7 +4,6 @@ import styled from '@emotion/styled';
  import { css } from '@emotion/core';
  import { hideVisually } from 'polished';
  -import { themePropType } from '../../util/shared-prop-types';
  import { svgKilo } from '../../styles/style-helpers';
  import SvgButton from '../SvgButton';
  import Icon from './close-icon.svg';
  @@ -28,7 +27,7 @@ const ButtonLabel = styled('span')`
  /**
  * A generic close button.
  */
  -const CloseButton = ({ theme, label, ...props }) => (
  +const CloseButton = ({ label, ...props }) => (
  <SvgCloseButton {...props}>
  <Icon />
  <ButtonLabel>{label}</ButtonLabel>
  @@ -39,8 +38,7 @@ CloseButton.propTypes = {
  /**
  * Text label for screen readers. Important for accessibility.
  */
  - label: PropTypes.string,
  - theme: themePropType.isRequired
  + label: PropTypes.string
  };
  CloseButton.defaultProps = {
  @@ -50,4 +48,4 @@ CloseButton.defaultProps = {
  /**
  * @component
  */
  -export default withTheme(CloseButton);
  +export default CloseButton;
  