reverting a fix

sql/sql_acl.cc:
  I revert my last change, as this requires further elaboration.
  For the moment we should document it in the manual.
  
  If MySQL 4.0.2 or higher is used with pre-4.0.2 user privilege table, 
  then user with no global privs at all will have privileges to:
  
  * LOCK TABLES
  * CREATE TEMPORARY TABLES
  * run commsnd SHOW DATABASES

sql/sql_acl.cc

@@ -297,8 +297,7 @@ int acl_init(bool dont_read_acl_tables)
 	  user.access|=REFERENCES_ACL | INDEX_ACL | ALTER_ACL;
       }
       /* Convert old privileges */
-      if (user.access)
-	user.access|= LOCK_TABLES_ACL | CREATE_TMP_ACL | SHOW_DB_ACL;
+      user.access|= LOCK_TABLES_ACL | CREATE_TMP_ACL | SHOW_DB_ACL;
       if (user.access & FILE_ACL)
 	user.access|= REPL_CLIENT_ACL | REPL_SLAVE_ACL;
       if (user.access & PROCESS_ACL)