Temporarily remove doc section on webpack analyzer (#4564)

Author: gaearon

packages/react-scripts/template/README.md

@@ -2048,14 +2048,6 @@ will affect your users' experience.
 
 ## Analyzing the Bundle Size
 
-When your app grows in size, it's easy for bundles to become bloated. The first step to solving large bundles is understanding what's in them!
-
-There are many different tools available to analyze bundles, but they typically rely on either **sourcemaps** or **webpack-specific JSON stats**.
-
-### Using Sourcemaps
-
-When building for production, sourcemaps are automatically created adjacent to the JS files in `build/static/js`.
-
 [Source map explorer](https://www.npmjs.com/package/source-map-explorer) analyzes
 JavaScript bundles using the source maps. This helps you understand where code
 bloat is coming from.
@@ -2090,45 +2082,6 @@ npm run build
 npm run analyze
 ```
 
-### Using Webpack Stats JSON
-
-> Note: this feature is available with [email protected] and higher.
-
-Webpack can produce a JSON manifest that details the bundles, and several tools can use that file to do analysis.
-
-Unlike with sourcemaps, the JSON file isn't created automatically on build. You must pass a `--stats` flag:
-
-```sh
-npm run build -- --stats
-```
-
-Once the build is complete, you should have a JSON file located at `build/bundle-stats.json`.
-
-The quickest way to get insight into your bundle is to drag and drop that JSON file into [Webpack Visualizer](https://chrisbateman.github.io/webpack-visualizer/).
-
-Another very popular tool is [`webpack-bundle-analyzer`](https://github.com/webpack-contrib/webpack-bundle-analyzer).
-
-To use `webpack-bundle-analyzer`, start by installing it from NPM:
-
-```sh
-npm install --save webpack-bundle-analyzer
-# or, with Yarn:
-yarn add webpack-bundle-analyzer
-```
-
-
-In `package.json`, add the following line to `scripts`:
-
-```diff
-   "scripts": {
-+    "analyze": "npm run build -- --stats && webpack-bundle-analyzer build/bundle-stats.json",
-     "start": "react-scripts start",
-     "build": "react-scripts build",
-     "test": "react-scripts test --env=jsdom",
-```
-
-When you run `npm run analyze`, a new build will be created, and a browser tab should open automatically, displaying the sizes of the modules within your bundle.
-
 ## Deployment
 
 `npm run build` creates a `build` directory with a production build of your app. Set up your favorite HTTP server so that a visitor to your site is served `index.html`, and requests to static paths like `/static/js/main.<hash>.js` are served with the contents of the `/static/js/main.<hash>.js` file.