doc: fix changelog fmt

Author: phip1611

uefi/CHANGELOG.md

@@ -41,13 +41,7 @@
 
 
 # uefi - 0.30.0 (2024-08-02)
-## Changed
-- **Breaking:**: Fixed a bug in the impls of `TryFrom<&[u8]>` for
-  `&DevicePathHeader`, `&DevicePathNode` and `&DevicePath` that could lead to
-  memory unsafety. See <https://github.com/rust-osdev/uefi-rs/issues/1281>.
-
 
-# uefi - 0.30.0 (2024-08-02)
 ## Changed
 - **Breaking:**: Fixed a bug in the impls of `TryFrom<&[u8]>` for
   `&DevicePathHeader`, `&DevicePathNode` and `&DevicePath` that could lead to