Update testing instructions for the 9.0.0 release

Author: danieldudzic

docs/internal-developers/testing/releases/900.md

@@ -101,5 +101,3 @@ Make loading placeholder colors match the current font color for the theme. ([76
 4. Untick "Use same address for billing"
 5. Enter different billing details
 6. Place the order and check the shipping and billing details are different
-
-### Block Checkout: Apply selected Local Pickup rate to entire order (all packages). ([7484](https://github.com/woocommerce/woocommerce-blocks/pull/7484))