Display Full Group Desc for BuddyPress

// Display Full Desc
function bp_full_group_desc_callback( $desc, $length ) {
    global $groups_template;
    $desc = bp_get_group_description();
    return $desc;
}
add_filter( 'bp_nouveau_get_group_description_excerpt', 'bp_full_group_desc_callback' , 10, 3 );