Switch WebRTC LKGR finder config to git.
Switch WebRTC LKGR finder config to git.

BUG=452841

Review URL: https://codereview.chromium.org/962803005

nicko96/Chrome-Infra,nicko96/Chrome-Infra,nicko96/Chrome-Infra,nicko96/Chrome-Infra,nicko96/Chrome-Infra