Docs: Remove incorrect `@return` tags.

Props diddledan.
Fixes #48613, #48614.
Built from https://develop.svn.wordpress.org/trunk@46732


git-svn-id: http://core.svn.wordpress.org/trunk@46532 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/post.php

@@ -1632,7 +1632,6 @@ function wp_set_post_lock( $post_id ) {
  * Outputs the HTML for the notice to say that someone else is editing or has taken over editing of this post.
  *
  * @since 2.8.5
- * @return none
  */
 function _admin_notice_post_locked() {
 	$post = get_post();

wp-includes/feed.php

@@ -250,7 +250,6 @@ function the_permalink_rss() {
  * Outputs the link to the comments for the current post in an xml safe way
  *
  * @since 3.0.0
- * @return none
  */
 function comments_link_feed() {
 	/**

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.4-alpha-46731';
+$wp_version = '5.4-alpha-46732';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.