need to delete constraint

[Scott Purcell]

I have the following table and would like to remove the constraint called 'attributes_ibfk_2'

CREATE TABLE `attributes` (
`att_id` int(8) NOT NULL default '0',
`att_type_id` int(2) default '1',
`att_opt_grp_id` int(8) default NULL,
`att_name` varchar(50) default NULL,
PRIMARY KEY (`att_id`),
KEY `att_opt_grp_id` (`att_opt_grp_id`),
KEY `att_type_id` (`att_type_id`),
CONSTRAINT `attributes_ibfk_1` FOREIGN KEY (`att_opt_grp_id`) REFERENCES `att_option_group` (`att_opt_grp_id`),
CONSTRAINT `attributes_ibfk_2` FOREIGN KEY (`att_type_id`) REFERENCES `attribute_types` (`att_type_id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;


Thanks,