test: Move TLS client configuration to versioned API

* RTD invocation is the only user of the TLS client configuration
* This configuration should be versioned along with the RTD invocation
  API.

BUG=chromium:1069902
TEST=./generate.sh

Change-Id: I7c724d4e5f708835c78529e723b450c84c2284a8
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/proto/+/2157904
Commit-Queue: Prathmesh Prabhu <pprabhu@chromium.org>
Tested-by: Prathmesh Prabhu <pprabhu@chromium.org>
Reviewed-by: Allen Li <ayatane@chromium.org>
4 files changed