How to disable site title and description when custom header is uploaded on the customizer?

<div class="table-cell">
    <?php if ( has_custom_header() ) : ?>

        <?php the_custom_header_markup() ?>

    <?php else : ?>

        <h1 class="blog-title"><?php bloginfo('name'); ?></h1>
        <h5 class="blog-tagline"><?php bloginfo('description'); ?></h5>
        <div class="image-title"><img src="https://wordpress.stackexchange.com/questions/248807/<?php bloginfo("template_url'); ?>/images/image.png" /></div>

    <?php endif ?>
</div>