Summary:
Convert root Gradle script to Kotlin DSL, and cleanup. Currently, there is not much benefit or advantage over Groovy scripts, except IDE support and it'll cache compiled KTS scripts on first run.
[Android] [Changed] - Convert root Gradle script to Kotlin DSL, and cleanup.
Pull Request resolved: https://github.com/facebook/react-native/pull/24631
Differential Revision: D15120190
Pulled By: cpojer
fbshipit-source-id: 86691db5c7746e71bb243ebc263c1a3075ee9a9e