Removed unused HashtagsPanel component

• Removed:
- unused HashtagsPanel component

app/javascript/gabsocial/components/panel/hashtags_panel.js

@@ -1,64 +0,0 @@
-import { injectIntl, defineMessages } from 'react-intl'
-import { fetchHashtags } from '../../actions/hashtags'
-import ImmutablePureComponent from 'react-immutable-pure-component'
-import ImmutablePropTypes from 'react-immutable-proptypes'
-import PanelLayout from './panel_layout'
-import HashtagItem from '../hashtag_item'
-
-const messages = defineMessages({
-  title: { id: 'hashtags.title', defaultMessage: 'Popular Hashtags' },
-  show_all: { id: 'groups.sidebar-panel.show_all', defaultMessage: 'Show all' },
-})
-
-const mapStateToProps = (state) => ({
-  hashtags: state.getIn(['hashtags', 'items']),
-})
-
-const mapDispatchToProps = (dispatch) => ({
-  fetchHashtags: () => dispatch(fetchHashtags()),
-})
-
-export default
-@connect(mapStateToProps, mapDispatchToProps)
-@injectIntl
-class HashtagsPanel extends ImmutablePureComponent {
-
-  static propTypes = {
-    hashtags: ImmutablePropTypes.list.isRequired,
-    fetchHashtags: PropTypes.func.isRequired,
-    intl: PropTypes.object.isRequired,
-  }
-
-  updateOnProps = [
-    'hashtags',
-  ]
-
-  componentDidMount() {
-    this.props.fetchHashtags()
-  }
-
-  render() {
-    const { intl, hashtags } = this.props
-
-    if (hashtags.isEmpty()) {
-      return null
-    }
-
-    return (
-      <PanelLayout
-        noPadding
-        title={intl.formatMessage(messages.title)}
-        footerButtonTitle={intl.formatMessage(messages.show_all)}
-        footerButtonTo='/search'
-      >
-        <div className={_s.default}>
-          {
-            hashtags.map(hashtag => (
-              <HashtagItem key={hashtag.get('name')} hashtag={hashtag} />
-            ))
-          }
-        </div>
-      </PanelLayout>
-    )
-  }
-}