Remove this XXX.

MySQLManager.close() is only used in tests where many connections are opened.
In a storage process, the connection is opened only once and kept until it shutdown.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@1450 71dcc9de-d417-0410-9af5-da40c76e7ee4

neo/storage/database/mysqldb.py

@@ -50,7 +50,6 @@ class MySQLDatabaseManager(DatabaseManager):
                 (username, password) = username.split(':')
         return (username, password, database)
 
-    # XXX: unused ?
     def close(self):
         self.conn.close()