Remove Vote Button for Guest

/* Remove Vote Button for Guest */
function remove_vote_for_guest() {
    if ( ! is_user_logged_in() ) {
    ?>
        <style id="wpdiscuz" scoped>
            .wpd-comment-footer .wpd-vote {
                display: none !important;
            }
        </style>
    <?php
    }
}

add_action( 'init', 'remove_vote_for_guest' );