Getting lots of test coupons

Since the update 2 days ago, I’ve been getting a lot (200+) of autogenerated coupons with names formatted “test-<randomstring>”, for example test-zwlkdmtn0ehgnsug

It looks like this lines up with your test_discount_creation() method in subscriber-discounts-for-woocommerce/trunk/includes/create-discount.php

and I think you forgot to remove the line:
add_action( ‘admin_init’, ‘test_discount_creation’ );