modify changelog

Author: neuronspike

CHANGELOG.md

@@ -13,7 +13,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 - Added support for Value.release() and FunctionCallbackInfo.release(). This is useful when using v8go in a long-running context.
-- Support for Heap Snapshots
 
 ### Fixed
 - Use string length to ensure null character-containing strings in Go/JS are not terminated early.