docs: fix changelog

Author: alexander-akait

CHANGELOG.md

@@ -8,7 +8,6 @@ All notable changes to this project will be documented in this file. See [standa
 ### Features
 
 * optimize JSON assets added later by plugins ([10ebd05](https://github.com/webpack-contrib/json-minimizer-webpack-plugin/commit/10ebd050b6ec802d3c414e3b618604f2391da956))
-* run optimize against assets added later by plugins ([97a335a](https://github.com/webpack-contrib/json-minimizer-webpack-plugin/commit/97a335a3735475d991e93a787f0ecc31d674b4fb))
 
 ## [2.0.0](https://github.com/webpack-contrib/json-minimizer-webpack-plugin/compare/v1.0.1...v2.0.0) (2020-11-09)