Remove Auto Renewal Checkbox if check is selected.

remove-auto-renewal-checkbox.php

<?php
// Add this code to your PMPro Customizations Plugin or Code Snippet plugin.

function my_footer_script() {
    global $pmpro_pages;

    if ( is_page($pmpro_pages['checkout'] ) ) {
?>
<script>
jQuery(document).ready(function(){
    jQuery('#pmpro_payment_method input').on('click', function(){ 
        if ( jQuery(this).val() == 'check' ) {
            jQuery('#pmpro_autorenewal_checkbox').hide();
            jQuery('.pmpro_checkout_field-autorenew #autorenew').prop('checked', false );
        } else {
            jQuery('#pmpro_autorenewal_checkbox').show();
        }
    });
});
</script>
<?php
    } // end of if statement
}
add_action( 'wp_footer', 'my_footer_script' );