Summary:
As now we have a single module to publish, I'm removing the build-logic folder and moving everything inside the java/build.gradle file.
I've also converted it to Kotlin,
Reviewed By: NickGerleman
Differential Revision: D47259204
fbshipit-source-id: 2378d9e9598d7816f230db5f763f2b0f4cdf01d0
