Cleanup BUCK files from template - Part 2 (#35020)
Cleanup BUCK files from template - Part 2 (#35020)

Summary:
The `template/android/app/build_defs.bzl` file can be removed as it's unused in the Template.

## Changelog

[Internal] - Remove build_defs.bzl from Android Template

Pull Request resolved: https://github.com/facebook/react-native/pull/35020

Test Plan: n/a

Reviewed By: cipolleschi

Differential Revision: D40506250

Pulled By: cortinico

fbshipit-source-id: 14d8522a995a4b19b5b6610fcb2c5b1dda3374c8

facebook/react-native,facebook/react-native,facebook/react-native,facebook/react-native,facebook/react-native,facebook/react-native,facebook/react-native,facebook/react-native,facebook/react-native