Angular output contains superflous global.d.ts

### Currently

The Angular output includes a file `global.d.ts`, containing JavaScript output from a bundling process, starting with:

```
var __create = Object.create;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
...
```

When this file is seen by Angular tooling (for example, Angular CLI), building the Angular app fails.

### Expected

Angular output should contain only the exact files/contents that are accepted by commonly used Angular tools - no superflous files.

Start by locating the Angular output generation that emits global.d.ts and reproduce the failure with Angular CLI. Done means the Angular output contains only files accepted by common Angular tooling, with no superfluous global.d.ts or bundling content.

Written by the indexing model from the issue text.