Update Genesis comments to include only the date, not the time, the comment was posted.

comments-remove-date.php

<?php

// Completely remove the date and time from comments.
add_filter( 'genesis_show_comment_date', '__return_false' );

comments.php

<?php

add_filter( 'genesis_markup_comment-time-link_content', 'leaven_remove_comment_time' );
/**
 * Remove time from comments.
 * @return string
 */
function leaven_remove_comment_time() {
	return get_comment_date();
}

markup.php

<?php

// Note: This code is copied directly from the Genesis Framework, markup.php file, lines 131-141.

/**
 * Contextual filter to modify 'content'.
 *
 * @since 2.6.0
 *
 * @param string $content Content being passed through Markup API.
 * @param array  $args  Array with markup arguments.
 *
 * @see genesis_markup $args Array.
 */
$content = apply_filters( "genesis_markup_{$args['context']}_content", $args['content'], $args );