Index: src/wp-admin/includes/schema.php
===================================================================
--- src/wp-admin/includes/schema.php	(revision 46193)
+++ src/wp-admin/includes/schema.php	(working copy)
@@ -261,13 +261,6 @@
 	KEY domain (domain(50),path(5)),
 	KEY lang_id (lang_id)
 ) $charset_collate;
-CREATE TABLE $wpdb->blog_versions (
-	blog_id bigint(20) NOT NULL default '0',
-	db_version varchar(20) NOT NULL default '',
-	last_updated datetime NOT NULL default '0000-00-00 00:00:00',
-	PRIMARY KEY  (blog_id),
-	KEY db_version (db_version)
-) $charset_collate;
 CREATE TABLE $wpdb->blogmeta (
 	meta_id bigint(20) unsigned NOT NULL auto_increment,
 	blog_id bigint(20) NOT NULL default '0',
Index: src/wp-admin/includes/upgrade.php
===================================================================
--- src/wp-admin/includes/upgrade.php	(revision 46193)
+++ src/wp-admin/includes/upgrade.php	(working copy)
@@ -650,13 +650,6 @@
 		wp_cache_flush();
 
 		if ( is_multisite() ) {
-			$site_id = get_current_blog_id();
-
-			if ( $wpdb->get_row( $wpdb->prepare( "SELECT blog_id FROM {$wpdb->blog_versions} WHERE blog_id = %d", $site_id ) ) ) {
-				$wpdb->query( $wpdb->prepare( "UPDATE {$wpdb->blog_versions} SET db_version = %d WHERE blog_id = %d", $wp_db_version, $site_id ) );
-			} else {
-				$wpdb->query( $wpdb->prepare( "INSERT INTO {$wpdb->blog_versions} ( `blog_id` , `db_version` , `last_updated` ) VALUES ( %d, %d, NOW() );", $site_id, $wp_db_version ) );
-			}
 			update_site_meta( get_current_blog_id(), 'db_version', $wp_db_version );
 			update_site_meta( get_current_blog_id(), 'db_last_updated', microtime() );
 		}
Index: src/wp-includes/wp-db.php
===================================================================
--- src/wp-includes/wp-db.php	(revision 46193)
+++ src/wp-includes/wp-db.php	(working copy)
@@ -306,7 +306,6 @@
 		'sitemeta',
 		'sitecategories',
 		'registration_log',
-		'blog_versions',
 	);
 
 	/**
@@ -426,14 +425,6 @@
 	public $blogmeta;
 
 	/**
-	 * Multisite Blog Versions table
-	 *
-	 * @since 3.0.0
-	 * @var string
-	 */
-	public $blog_versions;
-
-	/**
 	 * Multisite Registration Log table
 	 *
 	 * @since 3.0.0