[WordPress] How to remove “Category : …”

What you can do, simply copy the archive.php file as category.php and then remove the following code section from category.php file:

<header class="page-header">
    <?php
        the_archive_title( '<h1 class="page-title">', '</h1>' );
        the_archive_description( '<div class="taxonomy-description">', '</div>' );
    ?>
</header><!-- .page-header -->

In case you want to show only Category name as page title, then instead of removing the above code from category.php file, just replace the the_archive_title method with:

printf('<h1 class="page-title">%1$s</h1>', single_cat_title('', false));

Biblenchurch(Onepress Theme)의 경우 category.php은 없고 archive.php에서 해결할 것
(archive.php을 수정해서 Child에 넣어줄 것)
상기의 코드가 나옴. printf이하로 대체할 것