Update testing notes

Author: nielslange

docs/internal-developers/testing/releases/800.md

@@ -47,12 +47,3 @@ Zip file for testing: [woocommerce-gutenberg-products-block.zip](https://github.
 10. Place your order. Check on the `Order received` page that the displayed **tax is actually added to the total**.
 11. Go to `Edit Order`. Check that **taxes were applied correctly there as well**.
 12. On the `Checkout` again, select `Flat rate`, using the same external address, and make sure **taxes are not applied**.
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-### Fix: Update billing address when shipping address gets change in Cart block. ([6591](https://github.com/woocommerce/woocommerce-blocks/pull/6591))
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-1. Add a product to cart and go to the `Cart` block.
-2. Add a new address in the shipping calculator, different from what you already used.
-3. Wait for the update and click `Proceed to checkout`.
-4. In the `Checkout` block, see the new address for shipping being added to the Shipping address.
-5. Uncheck the checkbox for Use same address for billing.
-6. Look at the Billing address form and confirm it has the same address which was selected in the shipping calculator.