Toolbox - Remove input quantity from /my-account/subscriptions page

functions.php

<?php

// Remove the list of products in a subscription with the quantity input
remove_action( 'woocommerce_my_subscriptions_after_subscription_id', 'Javorszky\Toolbox\add_list_of_items' );

// Re-add the list of products without the quantity input. 
add_action( 'woocommerce_my_subscriptions_after_subscription_id', 'sp_add_list_of_items' );
function sp_add_list_of_items( $subscription ) {
	echo '<ul>';
	foreach ( $subscription->get_items() as $item_id => $item ) {
		echo '<li>' . wp_kses_post( $item->get_name() ) . ' &times; ' . esc_attr( $item->get_quantity() ) . '</li>';
	}
	echo '</ul>';
}