removed a USE that should not be there

git-svn-id: https://svn.code.sf.net/p/rathena/svn/branches/stable@410 54d463be-8e91-2dee-dedb-b68131a5f0ec

sql-files/main.sql

@@ -451,7 +451,6 @@ CREATE TABLE `storage` (
   KEY `account_id` (`account_id`)
 ) TYPE=MyISAM; 
 
-USE `ragnarok`;
 CREATE TABLE `friends` (
   `id` int(11) NOT NULL auto_increment,
   `account_id` int(11) NOT NULL default '0',
@@ -497,4 +496,4 @@ CREATE TABLE `friends` (
   `name20` varchar(255) NOT NULL default '',
   PRIMARY KEY  (`id`),
   KEY `account_id` (`account_id`)
-) TYPE=MyISAM
+) TYPE=MyISAM