Remove table cellspacing attribute from the admin, part-props MattyRob, fixes #22086.

Built from https://develop.svn.wordpress.org/trunk@27036


git-svn-id: http://core.svn.wordpress.org/trunk@26912 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/import.php

@@ -76,7 +76,7 @@ if ( empty( $importers ) ) {
 } else {
 	uasort($importers, create_function('$a, $b', 'return strnatcasecmp($a[0], $b[0]);'));
 ?>
-<table class="widefat importers" cellspacing="0">
+<table class="widefat importers">
 
 <?php
 	$alt = '';