1. Create a /parts subdirectory in your child theme.
2. Copy /parts/single-suthor-date.php from the parent theme to that same path in your child theme.
3. Locate this section of code:
<?php if( get_the_modified_date() != get_the_date() || get_the_modified_time() != get_the_time() ) : ?>
<?php _e('Published', 'hueman'); ?> <time class="published" datetime="<?php the_time('Y-m-d H:i:s'); ?>"><?php the_time(get_option('date_format')); ?></time>
<?php _e('Updated', 'hueman'); ?> <time class="updated" datetime="<?php the_modified_time('Y-m-d H:i:s'); ?>"><?php the_modified_time('F j, Y'); ?></time>
<?php else : ?>
Remove the “Updated” line so it looks like this:
<?php if( get_the_modified_date() != get_the_date() || get_the_modified_time() != get_the_time() ) : ?>
<?php _e('Published', 'hueman'); ?> <time class="published" datetime="<?php the_time('Y-m-d H:i:s'); ?>"><?php the_time(get_option('date_format')); ?></time>
<?php else : ?>