remove redundant changelog entries

Author: Kristófer R

changelog.txt

@@ -1,7 +1,6 @@
 *** Changelog ***
 
 = 7.1.0 - 2023-xx-xx =
-* Add - Declare this plugin compatible with High-Performance Order Storage (HPOS).
 * Fix - Replace some post meta methods with equivalent methods compatible with HPOS.
 * Fix - Rare cases of payment processing failing when webhooks arrive before customer is redirected when UPE is enabled will no longer occur.
 * Tweak - Update minimum supported versions for WordPress, WooCommerce, and PHP.

readme.txt

@@ -129,7 +129,6 @@ If you get stuck, you can ask for help in the Plugin Forum.
 == Changelog ==
 
 = 7.1.0 - 2023-xx-xx =
-* Add - Declare this plugin compatible with High-Performance Order Storage (HPOS).
 * Fix - Replace some post meta methods with equivalent methods compatible with HPOS.
 * Tweak - Update minimum supported versions for WordPress, WooCommerce, and PHP.
 * Update – Declare this plugin compatible with High-Performance Order Storage (HPOS).