// if uninstall.php is not called by WordPress, die
if (!defined('WP_UNINSTALL_PLUGIN')) {
    die;
}

//unregister_setting( 'accumulus-settings-group', 'accumulus_client_id' );
//unregister_setting( 'accumulus-settings-group', 'accumulus_client_secret' );
//unregister_setting( 'accumulus-settings-group', 'accumulus_testclient_id' );
//unregister_setting( 'accumulus-settings-group', 'accumulus_testclient_secret' );
//unregister_setting( 'accumulus-settings-group', 'accumulus_webhook_auth_user' );
//unregister_setting( 'accumulus-settings-group', 'accumulus_webhook_auth_password' );
//unregister_setting( 'accumulus-settings-group', 'accumulus_active_customer_role' );
//unregister_setting( 'accumulus-settings-group', 'accumulus_webhook_endpoint_enabled' );