[Example] With TS Eslint Jest - unnecessary package (#17170)
[Example] With TS Eslint Jest - unnecessary package (#17170)

As mentioned in [here](https://www.npmjs.com/package/@types/testing-library__react), the package has been deprecated and not necessary to be installed.
By removing this from `package.json` will give other devs have more understanding when learning typescript with eslint and jest about what need to be installed on the project.
JeromeFitz/next.js,flybayer/next.js,JeromeFitz/next.js,flybayer/next.js,flybayer/next.js,azukaru/next.js,zeit/next.js,JeromeFitz/next.js,zeit/next.js,azukaru/next.js,zeit/next.js,azukaru/next.js,azukaru/next.js,JeromeFitz/next.js,flybayer/next.js