refactor: removed chart.js re-exports (#835)

BREAKING CHANGE: Chart.js re-exports are removed

Author: dangreen

src/index.tsx

@@ -1,7 +1,3 @@
-// @todo Remove these exports
-export { default as Chart } from 'chart.js/auto';
-export { defaults } from 'chart.js';
-
 // @todo Make named export instead of default
 export { Chart as default } from './chart';
 export type { ChartProps } from './types';