以下代码可以完美地显示自定义帖子类型的所有类别。然而，当没有类别时，它会呼应“没有类别”。如何删除此项？

                    <?php //Category Display for Custom Post type - Video
                    $customPostTaxonomies = get_object_taxonomies(\'opd-music\');
                    if(count($customPostTaxonomies) > 0)
                    {

                        foreach($customPostTaxonomies as $tax)
                        {

                            $args = array(
                                \'orderby\' => \'name\',
                                \'show_count\' => 0,
                                \'pad_counts\' => 0,
                                \'hierarchical\' => 1,
                                \'taxonomy\' => $tax,
                                \'title_li\' => \'\',
                                \'echo\' => 0,
                                \'style\' => \'simple\'
                            );
                            echo \'<span class="sort-button-filter">\';    
                            echo  \'<a href="\';
                            echo $alllink;
                            echo  \'">All</a>\';
                            echo str_replace( \'<br />\', \'\', wp_list_categories( $args ) );
                            echo \'</span>\';
                             }

                    } ?>