xprofile_delete_clones_on_template_delete( BP_XProfile_Field $field )

function xprofile_delete_clones_on_template_delete ( $field ) {
    global $wpdb;
    $bp = buddypress();
    
    //get all clone field ids
    $clone_ids = $wpdb->get_col( $wpdb->prepare(
        "SELECT f.id FROM {$bp->profile->table_name_fields} AS f JOIN {$bp->profile->table_name_meta} AS fm ON f.id = fm.object_id "
        . " WHERE f.parent_id = 0 AND fm.meta_key = '_cloned_from' AND fm.meta_value = %d ",
        $field->id
    ) );
        
    if ( empty( $clone_ids ) || is_wp_error( $clone_ids ) ) {
        return;
    }
    
    foreach ( $clone_ids as $clone_id ) {
        $clone_field       = xprofile_get_field( $clone_id );
        $clone_field->delete( true );
    }
}