Summary:
We are removing private submodules from our repo.

The cpplint version we are using is based off of `d6054228db5daf0a730d627292de75ebb5e04948`

Test Plan: run `arc lint`

Reviewers: vihang, zasgar, #third_party_approvers

Reviewed By: zasgar, #third_party_approvers

Differential Revision: https://phab.corp.pixielabs.ai/D8286

GitOrigin-RevId: e788dd75a2491bd76c9f15b4939c00c6aac9783a