Activity

I am trying remove some activity types. So I change the function in activity-loop.php

<?php if ( bp_has_activities( bp_ajax_querystring( ‘activity’ ) . ‘&action=activity_update’ ) ) : ?>
So, it only shows the update activity of the user.It works without buddyboss wall.
However, after I activate the buddyboss wall, it is not working anymore. I try a lot of ways, no luck. I only have two choices now, use buddyboss wall or not, I really want to use buddyboss wall, but if buddyboss wall gave me a problem like that, I have to deactivate it. So, please someone tell me what other way that I can do in order to filter the activity stream, which I don’t want the user-update message, change profile message, new user reregistration.
This is my last luck here! Thank you for your time.