Instead of a hard copy of protobuf definition introduce a make target.

[ruseinov]

One that clones latest protobuf definitions from the original repo with the protocol.

The downside of this is that the protobuf definition will no longer be part of the repo, so the project won't build without successfully executing the aforementioned make target first.

@tylertreat what do you think?

Something along these lines was my plan:

rm -rf liftbridge-api
git clone --depth 1 git@github.com:liftbridge-io/liftbridge-api.git

plus a .gitignore for the liftbridge-api folder.

[tylertreat]

Makes sense to me.