Fix CHANGELOG duplication

Author: molpopgen

CHANGELOG.md

@@ -28,32 +28,6 @@ All notable changes to this project will be documented in this file.
 - Replace macros with fn for adding node table rows ([#489](https://github.com/tskit-dev/tskit-rust/pull/489))
 - Manually impl Default for NodeDefaultsWithMetadata ([#490](https://github.com/tskit-dev/tskit-rust/pull/490))
 
-## [0.14.0] - 2023-03-16
-
-### Documentation
-
-- Book section on node defaults ([#491](https://github.com/tskit-dev/tskit-rust/pull/491))
-
-### Features
-
-- Allow use of bookmark in examples/haploid_wright_fisher ([#479](https://github.com/tskit-dev/tskit-rust/pull/479))
-- Impl Default for row id types ([#484](https://github.com/tskit-dev/tskit-rust/pull/484))
-- Impl Default for Bookmark ([#486](https://github.com/tskit-dev/tskit-rust/pull/486))
-- Implement Builder pattern for flags ([#487](https://github.com/tskit-dev/tskit-rust/pull/487))
-- Support adding nodes with defaults ([#488](https://github.com/tskit-dev/tskit-rust/pull/488))
-
-### Miscellaneous Tasks
-
-- [**breaking**] Bump MSRV to 1.60.0 ([#478](https://github.com/tskit-dev/tskit-rust/pull/478))
-
-### Refactor
-
-- Remove internal impl Deref/DerefMut for edge diff iterator. ([#482](https://github.com/tskit-dev/tskit-rust/pull/482))
-- Mod table_view is no longer pub ([#483](https://github.com/tskit-dev/tskit-rust/pull/483))
-- [**breaking**] TableCollection::simplify now takes &[NodeId] ([#485](https://github.com/tskit-dev/tskit-rust/pull/485))
-- Replace macros with fn for adding node table rows ([#489](https://github.com/tskit-dev/tskit-rust/pull/489))
-- Manually impl Default for NodeDefaultsWithMetadata ([#490](https://github.com/tskit-dev/tskit-rust/pull/490))
-
 ## [0.12.0] - 2022-12-23
 
 ### Documentation