use rollup json plugin

Author: AbhiPrasad

packages/aws-serverless/rollup.aws.config.mjs

@@ -21,10 +21,6 @@ export default [
     // it to be `index.js` in the build script, since it's standing in for the index file of the npm package.
     { variants: ['.min.js'] },
   ),
-
-  // This builds a wrapper file, which our lambda layer integration automatically sets up to run as soon as node
-  // launches (via the `NODE_OPTIONS="-r @sentry/aws-serverless/dist/awslambda-auto"` variable). Note the inclusion in this
-  // path of the legacy `dist` folder; for backwards compatibility, in the build script we'll copy the file there.
   makeBaseNPMConfig({
     entrypoints: ['src/awslambda-auto.ts'],
     packageSpecificConfig: {