tree dc496410de5c510fe3fbd08a21f451c0823bb6db
parent 487bfad1fe5f340d92d6aa60d8de16fe3c3b14e6
author Shoaib Meenai <smeenai@fb.com> 1582328648 -0800
committer Copybara-Service <copybara-worker@google.com> 1598947551 -0700

[arcconfig] Delete subproject arcconfigs

From https://secure.phabricator.com/book/phabricator/article/arcanist_new_project/:

> An .arcconfig file is a JSON file which you check into your project's root.

I've done some experimentation, and it looks like the subproject
.arcconfigs just get ignored, as the documentation says. Given that
we're fully on the monorepo now, it's safe to remove them.

Differential Revision: https://reviews.llvm.org/D74996

GitOrigin-RevId: e34ddc09f464667b5f3a49bf60255e89041ddf44