Plt-4483 Removed unnecessary events from ChannelStore (#4407)

* PLT-4483 Removed MoreChange listener from ChannelStore

* PLT-4483 Removed LeaveChannel listener from ChannelStore

webapp/components/channel_header.jsx

@@ -23,7 +23,6 @@ import SearchStore from 'stores/search_store.jsx';
 import PreferenceStore from 'stores/preference_store.jsx';
 import WebrtcStore from 'stores/webrtc_store.jsx';
 
-import AppDispatcher from '../dispatcher/app_dispatcher.jsx';
 import * as GlobalActions from 'actions/global_actions.jsx';
 import * as WebrtcActions from 'actions/webrtc_actions.jsx';
 import * as ChannelActions from 'actions/channel_actions.jsx';
@@ -34,7 +33,7 @@ import Client from 'client/web_client.jsx';
 import * as AsyncClient from 'utils/async_client.jsx';
 import {getFlaggedPosts} from 'actions/post_actions.jsx';
 
-import {ActionTypes, Constants, Preferences, UserStatuses} from 'utils/constants.jsx';
+import {Constants, Preferences, UserStatuses} from 'utils/constants.jsx';
 
 import React from 'react';
 import {FormattedMessage} from 'react-intl';
@@ -130,11 +129,6 @@ export default class ChannelHeader extends React.Component {
             () => {
                 const channelId = this.state.channel.id;
 
-                AppDispatcher.handleViewAction({
-                    type: ActionTypes.LEAVE_CHANNEL,
-                    id: channelId
-                });
-
                 if (this.state.isFavorite) {
                     ChannelActions.unmarkFavorite(channelId);
                 }

webapp/components/more_channels.jsx

@@ -41,7 +41,7 @@ export default class MoreChannels extends React.Component {
 
     componentDidMount() {
         const self = this;
-        ChannelStore.addMoreChangeListener(this.onListenerChange);
+        ChannelStore.addChangeListener(this.onListenerChange);
 
         $(this.refs.modal).on('shown.bs.modal', () => {
             AsyncClient.getMoreChannels(true);
@@ -54,7 +54,7 @@ export default class MoreChannels extends React.Component {
     }
 
     componentWillUnmount() {
-        ChannelStore.removeMoreChangeListener(this.onListenerChange);
+        ChannelStore.removeChangeListener(this.onListenerChange);
     }
 
     getStateFromStores() {

webapp/components/post_view/components/post_message_container.jsx

@@ -48,7 +48,6 @@ export default class PostMessageContainer extends React.Component {
         PreferenceStore.addChangeListener(this.onPreferenceChange);
         UserStore.addChangeListener(this.onUserChange);
         ChannelStore.addChangeListener(this.onChannelChange);
-        ChannelStore.addMoreChangeListener(this.onChannelChange);
     }
 
     componentWillUnmount() {
@@ -56,7 +55,6 @@ export default class PostMessageContainer extends React.Component {
         PreferenceStore.removeChangeListener(this.onPreferenceChange);
         UserStore.removeChangeListener(this.onUserChange);
         ChannelStore.removeChangeListener(this.onChannelChange);
-        ChannelStore.removeMoreChangeListener(this.onChannelChange);
     }
 
     onEmojiChange() {