Fix changelog

Author: matthewwalsh0

packages/transaction-pay-controller/CHANGELOG.md

@@ -9,8 +9,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [5.0.0]
 
-### Uncategorized
-
 ### Added
 
 - **BREAKING:** Include transactions in Relay quotes via EIP-7702 and delegation ([#7122](https://github.com/MetaMask/core/pull/7122))