diff --git a/addons/mail/controllers/bus.py b/addons/mail/controllers/bus.py
index 5eebe969c09..0249c823ec4 100644
--- a/addons/mail/controllers/bus.py
+++ b/addons/mail/controllers/bus.py
@@ -50,14 +50,3 @@ class MailChatController(openerp.addons.bus.controllers.main.BusController):
         request_uid = self._default_request_uid()
         channel = request.env["mail.channel"].sudo(request_uid).search([('uuid', '=', uuid)], limit=1)
         return channel.sudo(request_uid).channel_fetch_message(last_id, limit)
-
-    @openerp.http.route('/mail/chat_init', type="json", auth="none")
-    def mail_chat_init(self):
-        result = {
-            'emoji': request.env['mail.shortcode'].sudo().search_read([('shortcode_type', '=', 'image')], ['source', 'substitution', 'description'])
-        }
-        # include the previous notifications, only for identified user
-        if request.session.uid:
-            request_uid = self._default_request_uid()
-            result['notifications'] = request.env['mail.channel'].sudo(request_uid).get_init_notifications()
-        return result
diff --git a/addons/mail/controllers/main.py b/addons/mail/controllers/main.py
index 13a56f02e3e..48ceaeaa902 100644
--- a/addons/mail/controllers/main.py
+++ b/addons/mail/controllers/main.py
@@ -243,5 +243,6 @@ class MailController(http.Controller):
             'needaction_inbox_counter': request.env['res.partner'].get_needaction_count(),
             'channel_slots': request.env['mail.channel'].channel_fetch_slot(),
             'mention_partner_suggestions': request.env['res.partner'].get_static_mention_suggestions(),
+            'emoji': request.env['mail.shortcode'].sudo().search_read([('shortcode_type', '=', 'image')], ['source', 'substitution', 'description']),
         }
         return values
diff --git a/addons/mail/models/mail_channel.py b/addons/mail/models/mail_channel.py
index 16511df100d..6b8ab0658f5 100644
--- a/addons/mail/models/mail_channel.py
+++ b/addons/mail/models/mail_channel.py
@@ -1,14 +1,11 @@
 # -*- coding: utf-8 -*-
 
-import datetime
 import uuid
 
 from openerp import _, api, fields, models, modules, tools
-from openerp.tools.misc import DEFAULT_SERVER_DATETIME_FORMAT
 from openerp.exceptions import UserError
 from openerp.osv import expression
 
-from openerp.addons.bus.models.bus_presence import AWAY_TIMER
 
 
 class ChannelPartner(models.Model):
@@ -452,40 +449,6 @@ class Channel(models.Model):
     #------------------------------------------------------
     # Instant Messaging View Specific (Slack Client Action)
     #------------------------------------------------------
-    @api.model
-    def get_init_notifications(self):
-        """ Get unread messages and old messages received less than AWAY_TIMER
-            ago of minimized channel ONLY. This aims to set the minimized channel
-            when refreshing the page.
-            Note : the user need to be logged
-        """
-        # get current user's minimzed channel
-        minimized_channels = self.env['mail.channel.partner'].search([('is_minimized', '=', True), ('partner_id', '=', self.env.user.partner_id.id)]).mapped('channel_id')
-
-        # get the message since the AWAY_TIMER
-        threshold = datetime.datetime.now() - datetime.timedelta(seconds=AWAY_TIMER)
-        threshold = threshold.strftime(DEFAULT_SERVER_DATETIME_FORMAT)
-        domain = [('channel_ids', 'in', minimized_channels.ids), ('create_date', '>', threshold)]
-
-        # get the message since the last poll of the user
-        presence = self.env['bus.presence'].search([('user_id', '=', self._uid)], limit=1)
-        if presence:
-            domain.append(('create_date', '>', presence.last_poll))
-
-        # do the message search
-        message_values = self.env['mail.message'].message_fetch(domain=domain)
-
-        # create the notifications (channel infos first, then messages)
-        notifications = []
-        for channel_info in minimized_channels.channel_info():
-            notifications.append([(self._cr.dbname, 'res.partner', self.env.user.partner_id.id), channel_info])
-        for message_value in message_values:
-            for channel_id in message_value['channel_ids']:
-                if channel_id in minimized_channels.ids:
-                    message_value['channel_ids'] = [channel_id]
-                    notifications.append([(self._cr.dbname, 'mail.channel', channel_id), dict(message_value)])
-        return notifications
-
     @api.model
     def channel_fetch_slot(self):
         """ Return the channels of the user grouped by 'slot' (channel, direct_message or private_group), and
diff --git a/addons/mail/static/src/js/chat_manager.js b/addons/mail/static/src/js/chat_manager.js
index cd758790d64..787ce244211 100644
--- a/addons/mail/static/src/js/chat_manager.js
+++ b/addons/mail/static/src/js/chat_manager.js
@@ -812,9 +812,6 @@ function init () {
         });
         needaction_counter = result.needaction_inbox_counter;
         mention_partner_suggestions = result.mention_partner_suggestions;
-    });
-
-    var load_emojis = session.rpc("/mail/chat_init").then(function (result) {
         emojis = result.emoji;
         _.each(emojis, function(emoji) {
             emoji_substitutions[emoji.source] = emoji.substitution;
@@ -827,7 +824,7 @@ function init () {
 
     bus.on('notification', null, on_notification);
 
-    return $.when(load_menu_id, load_action_id, load_channels, load_emojis).then(function (menu_id, action_id) {
+    return $.when(load_menu_id, load_action_id, load_channels).then(function (menu_id, action_id) {
         discuss_ids = {
             menu_id: menu_id,
             action_id: action_id,