Index: wp-includes/ms-blogs.php
===================================================================
--- wp-includes/ms-blogs.php	(revision 23457)
+++ wp-includes/ms-blogs.php	(working copy)
@@ -43,8 +43,6 @@
  * @return string
  */
 function get_blogaddress_by_name( $blogname ) {
-	global $current_site;
-
 	if ( is_subdomain_install() ) {
 		if ( $blogname == 'main' )
 			$blogname = 'www';
@@ -770,4 +768,3 @@
 
 	wpmu_update_blogs_date();
 }
-