how to uninstall add-on w/o sql file?

If the add-on did not come with an uninstall.sql file (Telephone Not Required add-on), how do I rip its listing out of Admin Config Customer Details? I've deleted everything related to the add-on, so the Admin control doesn't function, which is fine, but I don't need it listed there taking up on that list of controls. Thanks much.

Every where you see INSERT INTO configuration you need to DELETE FROM configuration, using the configuration key (the upper case value). For instance:

$db->Execute("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, set_function ,date_added) values ('Re-calculate Tax', 'MODULE_ORDER_TOTAL_BETTER_TOGETHER_CALC_TAX', 'Standard', 'Re-Calculate Tax', '6', '4','zen_cfg_select_option(array('None', 'Standard', 'VAT', 'Credit Note'), ', now())");

is uninstalled using

DELETE FROM configuration WHERE configuration_key = 'MODULE_ORDER_TOTAL_BETTER_TOGETHER_CALC_TAX';

Thank you, Scott. I'm trying to grip it and rip it, but am a little fuzzy. Here is all the code from the install.sql. With your instructions for uninstall, how would it look? Once I know what it should look like, and I can handle executing the sql.
Thanks again.
Jim

-- Insert Telephone info into config. for Admin operation.
INSERT INTO configuration (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, set_function, date_added) VALUES ('Telephone Number', 'ACCOUNT_TELEPHONE_NUMBER', 'true', 'Display telephone number field during account creation and with account information', '5', '8', 'zen_cfg_select_option(array('true', 'false'), ', now());

DELETE FROM configuration WHERE configuration_key = 'ACCOUNT_TELEPHONE_NUMBER';

thanks, simpler than I was making it. fun to learn!