Chore: Fix presence for current user (#1001)

Co-authored-by: Pranav Raj Sreepuram <pranavrajs@gmail.com>

app/javascript/dashboard/store/index.js

@@ -5,7 +5,6 @@ import accounts from './modules/accounts';
 import agents from './modules/agents';
 import auth from './modules/auth';
 import cannedResponse from './modules/cannedResponse';
-import Channel from './modules/channels';
 import contactConversations from './modules/contactConversations';
 import contacts from './modules/contacts';
 import conversationLabels from './modules/conversationLabels';
@@ -30,7 +29,6 @@ export default new Vuex.Store({
     agents,
     auth,
     cannedResponse,
-    Channel,
     contactConversations,
     contacts,
     conversationLabels,