Remove extremely frustrating auto-`git add` behavior from lint-staged.
Remove extremely frustrating auto-`git add` behavior from lint-staged.

Anyone who uses `git add -p` or `git commit -p` to contruct their commits
from a careful subset of current changes has been bitten by this
thoughtless policy many times. I'm done working around it.

apollographql/apollo-client,apollographql/apollo-client,apollostack/apollo-client,apollostack/apollo-client,apollostack/apollo-client