Remove the esnext folder

UNRELEASED.md

@@ -10,6 +10,7 @@ Use [the changelog guidelines](https://git.io/polaris-changelog-guidelines) to f
 - Made `autoComplete` prop in `TextField` a required string ([#4267](https://github.com/Shopify/polaris-react/pull/4267)). If you do not want the browser to autofill a user's information (for example an email input which is a customer's email, but not the email of the user who is entering the information), we recommend setting `autoComplete` to `"off"`.
 - `Autocomplete` now requires `Autocomplete.TextField` to be used ([#3910](https://github.com/Shopify/polaris-react/pull/3910))
 - Removed ComboBox as a named export on `Autocomplete` ([#3910](https://github.com/Shopify/polaris-react/pull/3910))
+- Remove the `esnext` folder from the package. If you use Polaris in an app built with sewing-kit, it must use at least sewing-kit 0.152.0 to leverage esnext builds. ([#4425](https://github.com/Shopify/polaris-react/pull/4425))
 
 ### Enhancements
 

package.json

@@ -15,7 +15,6 @@
   },
   "files": [
     "dist",
-    "esnext",
     "locales",
     "!*.tsbuildinfo"
   ],