How to remove coupon buttons?

I don’t know storefront, but this should work:

First, create a child theme. Create a folder woocommerce/ in your child theme, and in there copy cart/cart.php and checkout/form-coupon.php from storefront if they exist, otherwise copy them from plugins/woocommerce/templates.

So your childtheme would now contain:

style.css
woocommerce/cart/cart.php
woocommerce/checkout/form-coupon.php

You can remove all contents from form-coupon.php.

In cart.php, remove the part that shows the ‘apply coupon’. Easiest would be changing WC()->cart->coupons_enabled() to false && WC()->cart->coupons_enabled() .

Good luck!

Worked first time!
Thanks so much!

Great! Don’t forget to rate my plugin!

I did. 5 stars!
Thanks for your very useful plugin.

Also this work from Github:
https://gist.github.com/maxrice/8550827

Add the code to functions.php