Summary:
This reverts https://github.com/facebook/react-native/issues/31128 - For the reasons stated in the thread. Files should have the correct endings in the repo (i.e. Windows .bat CRLF). There is no reason to perform additional conversion with attributes and/or an editorconfig. It was originally fixed in https://github.com/facebook/react-native/issues/29792 in August 2020.

⚠ **EDIT 2021-08-31**

Commits 85249caf and 13107fa3 accidentally converted the gradlew.bat files to LF again, resulting in modified files to appear in the working directory:

```
$ git status -s
 M gradlew.bat
 M packages/react-native-codegen/android/gradlew.bat
 M template/android/gradlew.bat
```

The reasons why this is happening are explained in detail in the two PRs linked above.

I've added an additional (new) commit to the PR head branch to fix the line endings in all three `gradlew.bat` files of the repo and rebased it. It should be ready for merge.

CC c...