fix: remove unrelated D1 entry from changelog

Author: datlechin

CHANGELOG.md

@@ -9,7 +9,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
-- Cloudflare D1 database support
 - Match highlighting in autocomplete suggestions (matched characters shown in bold)
 - Loading spinner in autocomplete popup while fetching column metadata