fix(lint): drop unused labelsColor/labelsColorMap/cacheBusterProp destructuring

Commit 08aac73 ("address review: replace side-effect useMemo with
idiomatic hooks") removed the shouldComponentUpdate-style useMemo that
was the only consumer of these three props, but left them in the
destructuring block. This caused TS6133 "declared but never read"
errors in lint-frontend (tsc --noEmit). Drop the destructuring; the
props remain declared on the ChartRendererProps interface so the
component's public API is unchanged.