cleanup release.gradle (#30468)
cleanup release.gradle (#30468)

Summary:
Cleanup release.gradle and remove code used to upload RN to maven repository, which is not longer used. Also removed configuration to include Javadoc, Sources in maven repo, thus reduce NPM package size.

## Changelog

[Internal] [Changed] - cleanup and remove maven upload from release.gradle

Pull Request resolved: https://github.com/facebook/react-native/pull/30468

Test Plan: you will no longer see *uploadArchives* in ./gradlew tasks. Also you can run **./gradlew :ReactAndroid:installArchives**

Reviewed By: mdvacca

Differential Revision: D25408128

Pulled By: fkgozali

fbshipit-source-id: b3ced1b466b9f11e3970136a116af4e29dbd33a1

janicduplessis/react-native,janicduplessis/react-native,javache/react-native,myntra/react-native,myntra/react-native,facebook/react-native,arthuralee/react-native,arthuralee/react-native,janicduplessis/react-native,javache/react-native,myntra/react-native,myntra/react-native,javache/react-native,arthuralee/react-native,facebook/react-native,myntra/react-native,pandiaraj44/react-native,javache/react-native,javache/react-native,facebook/react-native,pandiaraj44/react-native,facebook/react-native,pandiaraj44/react-native,janicduplessis/react-native,myntra/react-native,facebook/react-native,myntra/react-native,javache/react-native,janicduplessis/react-native,facebook/react-native,pandiaraj44/react-native,arthuralee/react-native,pandiaraj44/react-native,pandiaraj44/react-native,facebook/react-native,pandiaraj44/react-native,javache/react-native,myntra/react-native,arthuralee/react-native,myntra/react-native,janicduplessis/react-native,janicduplessis/react-native,facebook/react-native,pandiaraj44/react-native,javache/react-native,javache/react-native,facebook/react-native,janicduplessis/react-native