BuddyPress.org

Hi,

Please try following code snippet:

function yuravw_remove_dp_activity( $activity_object ) {

    $exclude = array( 'new_avatar');

    if( in_array( $activity_object->type, $exclude ) )
        $activity_object->type = false;
}
add_action('bp_activity_before_save', 'yuravw_remove_dp_activity', 1, 15 );

It will stop any new activity of profile pic update but older ones will be there as it is.

Thanks

Create a file named bp-custom.php in the plugins folder and then put this code there. For reference: https://codex.buddypress.org/themes/bp-custom-php

If not able to do it then the easiest way is to install the plugin Code Snippets https://wordpress.org/plugins/code-snippets/ and add a new snippet there, then paste this code.

Thanks