docs(typescript): Remove now unneeded documentation of non functional…

… workaround

Signed-off-by: Ferdinand Thiessen <rpm@fthiessen.de>

packages/typescript/README.md

@@ -300,54 +300,6 @@ export default {
 
 Previous versions of this plugin used Typescript's `transpileModule` API, which is faster but does not perform typechecking and does not support cross-file features like `const enum`s and emit-less types. If you want this behaviour, you can use [@rollup/plugin-sucrase](https://github.com/rollup/plugins/tree/master/packages/sucrase) instead.
 
-### Declaration Output With `output.file`
-
-When instructing Rollup to output a specific file name via the `output.file` Rollup configuration, and TypeScript to output declaration files, users may encounter a situation where the declarations are nested improperly. And additionally when attempting to fix the improper nesting via use of `outDir` or `declarationDir` result in further TypeScript errors.
-
-Consider the following `rollup.config.js` file:
-
-```js
-import typescript from '@rollup/plugin-typescript';
-
-export default {
-  input: 'src/index.ts',
-  output: {
-    file: 'dist/index.mjs'
-  },
-  plugins: [typescript()]
-};
-```
-
-And accompanying `tsconfig.json` file:
-
-```json
-{
-  "include": ["*"],
-  "compilerOptions": {
-    "outDir": "dist",
-    "declaration": true
-  }
-}
-```
-
-This setup will produce `dist/index.mjs` and `dist/src/index.d.ts`. To correctly place the declaration file, add an `exclude` setting in `tsconfig` and modify the `declarationDir` setting in `compilerOptions` to resemble:
-
-```json
-{
-  "include": ["*"],
-  "exclude": ["dist"],
-  "compilerOptions": {
-    "outDir": "dist",
-    "declaration": true,
-    "declarationDir": "."
-  }
-}
-```
-
-This will result in the correct output of `dist/index.mjs` and `dist/index.d.ts`.
-
-_For reference, please see the workaround this section is based on [here](https://github.com/microsoft/bistring/commit/7e57116c812ae2c01f383c234f3b447f733b5d0c)_
-
 ## Meta
 
 [CONTRIBUTING](/.github/CONTRIBUTING.md)