Summary:
Changelog: [Internal] Remove un-necessary package installs which was using `npm install flow-bin --save-dev` which was wiping out our `node_modules` from the circleCI yarn install.
It was un-necessary as we already have `flow-bin` as a dependency in our current set-up.
In addtion, we were running `npm pack` without properly copying over our package.json dependencies (which occurs in `prepare-package-for-release`) for a consumable react-native package.
This may not have caused issue but technically we were creating an "incomplete" package to do our e2e testing on.
Reviewed By: charlesbdudley
Differential Revision: D33197965
fbshipit-source-id: 6583ef1f8e17333c0f27ecc37635c36ae5a0bb62
Luna Wei
50e109c78d