Docs: Remove @return void from various DocBlocks.

Per the documentation standards, it should not be used outside of the default bundled themes.

Follow-up to [38767], [47055], [49697], [50956], [51003], [52069], [53255].

See #54729.

git-svn-id: https://develop.svn.wordpress.org/trunk@53331 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/theme-templates.php

@@ -105,8 +105,6 @@ function wp_filter_wp_template_unique_post_slug( $override_slug, $slug, $post_ID
  * @since 5.8.0
  *
  * @global string $_wp_current_template_content
- *
- * @return void
  */
 function the_block_template_skip_link() {
 	global $_wp_current_template_content;