Update Redux example to use Toolkit + update dependencies. (vercel#29104)

After talking with markerikson, I've made some updates to the Redux examples:

- Updated the `with-redux` example to use the Redux Toolkit + TypeScript example
- Updated dependencies of `with-redux` to work with latest testing setup
- Removed `with-redux-toolkit` in favor of `with-redux`
- Removed `with-redux-toolkit-typescript` in favor of `with-redux`
- Removed `with-redux-code-splitting` in favor of `with-redux`

Author: leerob

examples/with-redux-code-splitting/.gitignore

@@ -1,23 +1 @@
-# Redux Toolkit TypeScript Example
-
-This example shows how to integrate Next.js with [Redux Toolkit](https://redux-toolkit.js.org).
-
-The **Redux Toolkit** is a standardized way to write Redux logic (create actions and reducers, setup the store with some default middlewares like redux devtools extension). This example demonstrates each of these features with Next.js
-
-## Deploy your own
-
-Deploy the example using [Vercel](https://vercel.com?utm_source=github&utm_medium=readme&utm_campaign=next-example):
-
-[![Deploy with Vercel](https://vercel.com/button)](https://vercel.com/new/git/external?repository-url=https://github.com/vercel/next.js/tree/canary/examples/with-redux-toolkit-typescript&project-name=with-redux-toolkit&repository-name=with-redux-toolkit)
-
-## How to use
-
-Execute [`create-next-app`](https://github.com/vercel/next.js/tree/canary/packages/create-next-app) with [npm](https://docs.npmjs.com/cli/init) or [Yarn](https://yarnpkg.com/lang/en/docs/cli/create/) to bootstrap the example:
-
-```bash
-npx create-next-app --example with-redux-toolkit-typescript with-redux-toolkit-app
-# or
-yarn create next-app --example with-redux-toolkit-typescript with-redux-toolkit-app
-```
-
-Deploy it to the cloud with [Vercel](https://vercel.com/new?utm_source=github&utm_medium=readme&utm_campaign=next-example) ([Documentation](https://nextjs.org/docs/deployment)).
+This example has been moved to [with-redux](https://github.com/vercel/next.js/tree/canary/examples/with-redux).

examples/with-redux-code-splitting/README.md

@@ -1,29 +1 @@
-# Redux Toolkit example
-
-This example shows how to integrate Next.js with [Redux Toolkit](https://redux-toolkit.js.org).
-
-The **Redux Toolkit** is intended to be the standard way to write Redux logic (create actions and reducers, setup the store with some default middlewares like redux devtools extension). This example demonstrates each of these features with Next.js
-
-## Deploy your own
-
-Deploy the example using [Vercel](https://vercel.com?utm_source=github&utm_medium=readme&utm_campaign=next-example):
-
-[![Deploy with Vercel](https://vercel.com/button)](https://vercel.com/new/git/external?repository-url=https://github.com/vercel/next.js/tree/canary/examples/with-redux-toolkit&project-name=with-redux-toolkit&repository-name=with-redux-toolkit)
-
-## How to use
-
-Execute [`create-next-app`](https://github.com/vercel/next.js/tree/canary/packages/create-next-app) with [npm](https://docs.npmjs.com/cli/init) or [Yarn](https://yarnpkg.com/lang/en/docs/cli/create/) to bootstrap the example:
-
-```bash
-npx create-next-app --example with-redux-toolkit with-redux-toolkit-app
-# or
-yarn create next-app --example with-redux-toolkit with-redux-toolkit-app
-```
-
-Deploy it to the cloud with [Vercel](https://vercel.com/new?utm_source=github&utm_medium=readme&utm_campaign=next-example) ([Documentation](https://nextjs.org/docs/deployment)).
-
-### TypeScript Setup (optional)
-
-If you haven't already added [TypeScript](https://www.typescriptlang.org/) to your project, follow the [steps in the Next.js documentation](https://nextjs.org/docs/basic-features/typescript). If you are new to TypeScript, go through the Next.js [learning lesson on TypeScript](https://nextjs.org/learn/excel/TypeScript).
-
-Once TypeScript is added, follow the instructions given on the Redux Toolkit [documentation](https://redux-toolkit.js.org/tutorials/TypeScript) to set up and use Redux Toolkit and React-Redux with TypeScript
+This example has been moved to [with-redux](https://github.com/vercel/next.js/tree/canary/examples/with-redux).