send confirmation email to just primary attendee

gistfile1.txt

function customized_espresso_email_after_payment($payment_data) {
	global $org_options;
	if ($payment_data['payment_status'] == 'Completed') {
		event_espresso_send_payment_notification(array('attendee_id' => $payment_data['attendee_id'], 'registration_id' => $payment_data['registration_id']));
		if ($org_options['email_before_payment'] == 'N') {
			event_espresso_email_confirmations(array('attendee_id' => $payment_data['attendee_id'], 'registration_id' => $payment_data['registration_id'], 'send_admin_email' => 'true', 'send_attendee_email' => 'true'));
		}
	}
        remove_action('action_hook_espresso_email_after_payment','espresso_email_after_payment');
}
add_action('action_hook_espresso_email_after_payment','customized_espresso_email_after_payment', 5);