Remove modern envs (#119)

* Remove modern envs * Remove outdated comment
kensho-technologies · Jun 22, 2021 · 2c20e02 · 2c20e02
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diff --git a/README.md b/README.md
@@ -25,27 +25,16 @@ You can set up Babel transpilation in [several ways](http://babeljs.io/docs/setu
 
 The preset can be configured using several options. Note that some options' defaults depend on the [Babel environment](https://babeljs.io/docs/en/options#envname), which may be one of the following:
 
-| Environment          | Purpose                                                              |
-| -------------------- | -------------------------------------------------------------------- |
-| `development`        | Transpiling an app for development.                                  |
-| `production`         | Transpiling an app for production.                                   |
-| `development-modern` | Transpiling an app for development with only modern browser support. |
-| `production-modern`  | Transpiling an app for production with only modern browser support.  |
-| `test`               | Transpiling an app or library to run in the current version of Node. |
-| `cjs`                | Transpiling a library for distribution as CJS.                       |
-| `esm`                | Transpiling a library for distribution as ESM.                       |
+| Environment   | Purpose                                                              |
+| ------------- | -------------------------------------------------------------------- |
+| `development` | Transpiling an app for development.                                  |
+| `production`  | Transpiling an app for production.                                   |
+| `test`        | Transpiling an app or library to run in the current version of Node. |
+| `cjs`         | Transpiling a library for distribution as CJS.                       |
+| `esm`         | Transpiling a library for distribution as ESM.                       |
 
 The present extends [`@babel/preset-env`](https://babeljs.io/docs/en/babel-preset-env), and forwards all additional options to that preset.
 
-Browser support is provided by `@babel/preset-env`'s [`browserslist` integration](https://babeljs.io/docs/en/babel-preset-env#browserslist-integration), where browser support is declared in a `.browserslistrc` file which can either contain a single set of browser queries or [multiple named groups of queries](https://github.com/browserslist/browserslist#configuring-for-different-environments). This preset's `development` and `production` envs will use the default (`production`) group while the `development-modern` and `production-modern` envs will use a `modern` group. Be sure to specify these groups if using the corresponding environments.
-
-### `browserslistEnv`
-
-`string` | `undefined`<br />
-Default: `modern` for `development-modern` and `production-modern` envs, `undefined` otherwise
-
-The Browserslist environment to use. Forwarded to [the corresponding option in `@babel/preset-env`](https://babeljs.io/docs/en/babel-preset-env#browserslistenv).
-
 ### `emotion`
 
 `false` | [`options`](https://emotion.sh/docs/@emotion/babel-preset-css-prop#options)<br />