RN: Temporarily Disable Prettier for Some Files

Summary:
We are in the middle of a Prettier upgrade and some of the files which disagree between Prettier v1.x and v2.x are now being flagged by `eslint-plugin-prettier` as lint errors.

The correct fix here is probably to update `eslint-config-prettier` and `eslint-plugin-prettier`, but I am landing this first to unbreak CI.

Reviewed By: mendoncakeegan

Differential Revision: D32129458

fbshipit-source-id: a5206a5ef58f1d7614f9459c99b9e39109be6de9