Posts, Post Types: Remove `/` from non-self-closing "clear" `div` tags.

In [49178], self-closing `br` tags were switched to non-self-closing `div` elements for "clearing" purposes, but the self-closing "/" remained in place.  This fix removes the unnecessary slash.

Props pavelvisualcomposer, audrasjb, sabernhardt, akabarikalpesh, SergeyBiryukov.
Fixes #52878.
Built from https://develop.svn.wordpress.org/trunk@50582


git-svn-id: http://core.svn.wordpress.org/trunk@50195 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/edit.php

@@ -482,7 +482,7 @@ if ( $wp_list_table->has_items() ) {
 ?>
 
 <div id="ajax-response"></div>
-<div class="clear" /></div>
+<div class="clear"></div>
 </div>
 
 <?php

wp-admin/users.php

@@ -649,7 +649,7 @@ if ( strlen( $usersearch ) ) {
 		<?php $wp_list_table->display(); ?>
 </form>
 
-<div class="clear" /></div>
+<div class="clear"></div>
 </div>
 		<?php
 		break;

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.8-alpha-50579';
+$wp_version = '5.8-alpha-50582';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.