remove unused button className

bigbluebutton-html5/imports/ui/components/actions-bar/actions-dropdown/component.jsx

@@ -209,7 +209,6 @@ class ActionsDropdown extends PureComponent {
           <Button
             hideLabel
             aria-label={intl.formatMessage(intlMessages.actionsLabel)}
-            className={styles.button}
             label={intl.formatMessage(intlMessages.actionsLabel)}
             icon="plus"
             color="primary"

bigbluebutton-html5/imports/ui/components/actions-bar/captions/component.jsx

@@ -24,7 +24,7 @@ const intlMessages = defineMessages({
 
 const CaptionsButton = ({ intl, isActive, handleOnClick }) => (
   <Button
-    className={cx(styles.button, isActive || styles.btn)}
+    className={cx(isActive || styles.btn)}
     icon="closed_caption"
     label={intl.formatMessage(isActive ? intlMessages.stop : intlMessages.start)}
     color={isActive ? 'primary' : 'default'}

bigbluebutton-html5/imports/ui/components/actions-bar/desktop-share/component.jsx

@@ -161,7 +161,7 @@ const DesktopShare = ({
   return (shouldAllowScreensharing
     ? (
       <Button
-        className={cx(styles.button, isVideoBroadcasting || styles.btn)}
+        className={cx(isVideoBroadcasting || styles.btn)}
         disabled={(!isMeteorConnected && !isVideoBroadcasting) || !screenshareDataSavingSetting}
         icon={isVideoBroadcasting ? 'desktop' : 'desktop_off'}
         label={intl.formatMessage(vLabel)}

bigbluebutton-html5/imports/ui/components/actions-bar/presentation-options/component.jsx

@@ -3,7 +3,6 @@ import PropTypes from 'prop-types';
 import { defineMessages, injectIntl, intlShape } from 'react-intl';
 import Button from '/imports/ui/components/button/component';
 import MediaService from '/imports/ui/components/media/service';
-import { styles } from '../styles';
 
 const propTypes = {
   intl: intlShape.isRequired,
@@ -27,7 +26,6 @@ const PresentationOptionsContainer = ({ intl, toggleSwapLayout, isThereCurrentPr
   if (shouldUnswapLayout()) toggleSwapLayout();
   return (
     <Button
-      className={styles.button}
       icon="presentation"
       label={intl.formatMessage(intlMessages.restorePresentationLabel)}
       description={intl.formatMessage(intlMessages.restorePresentationDesc)}