Chats: remove duplicate navigation

app/soapbox/features/chats/index.js

@@ -8,7 +8,6 @@ import { fetchChats, launchChat } from 'soapbox/actions/chats';
 import AccountSearch from 'soapbox/components/account_search';
 import AudioToggle from 'soapbox/features/chats/components/audio_toggle';
 
-import ColumnHeader from '../../components/column_header';
 import { Column } from '../../components/ui';
 
 import ChatList from './components/chat_list';
@@ -47,11 +46,6 @@ class ChatIndex extends React.PureComponent {
 
     return (
       <Column label={intl.formatMessage(messages.title)}>
-        <ColumnHeader
-          icon='comment'
-          title={intl.formatMessage(messages.title)}
-        />
-
         <div className='column__switch'>
           <AudioToggle />
         </div>