[FIX] mail: Remove field 'chatter_needaction_auto' from the view as it's not used

anymwhere since the chatter refactor refactoring

It has been removed entirely in master at
https://github.com/odoo/odoo/commit/b278b2c431a1bb06627bbdc285263644049bb3b0

addons/mail/controllers/main.py

@@ -241,7 +241,6 @@ class MailController(http.Controller):
     def mail_client_action(self):
         values = {
             'needaction_inbox_counter': request.env['res.partner'].get_needaction_count(),
-            'chatter_needaction_auto': request.env.user.chatter_needaction_auto,
             'channel_slots': request.env['mail.channel'].channel_fetch_slot(),
             'mention_partner_suggestions': request.env['res.partner'].get_static_mention_suggestions(),
         }

addons/mail/views/res_users_views.xml

@@ -11,7 +11,6 @@
             <data>
                 <field name="email" position="before">
                     <field name="notify_email" widget="radio" readonly="0"/>
-                    <field name="chatter_needaction_auto"/>
                 </field>
             </data>
             </field>