Remove auto-renewal checkbox when discount code is entered. Should fix https://github.com/strangerstudios/pmpro-auto-renewal-checkbox/issues/7

my_pmproarc_remove_checkbox_with_discount_code.php

<?php

// Copy from below here

function my_pmproarc_remove_checkbox_when_discount_code_applied( $discount_code, $discount_code_id, $level_id, $code_level ) {
	if ( ! empty( $code_level ) ) {
		echo 'jQuery( "#pmpro_autorenewal_checkbox" ).remove()';
	}
}
add_action( 'pmpro_applydiscountcode_return_js', 'my_pmproarc_remove_checkbox_when_discount_code_applied', 10, 4 );