Android Gradle: remove configureondemand property

Summary:
It looks like this config in gradle.properties caused the :packages:rn-tester:android:app:dependencies task to fail. This was reported here: https://github.com/gradle/gradle/issues/9645#issuecomment-530746758 -- it's likely related to using Kotlin build.gradle.kts?

For now comment these out.

Changelog: [Internal]

Reviewed By: mdvacca

Differential Revision: D23521954

fbshipit-source-id: 9997f4950d89e5fc57036b05db5518b39d47737b