Automatic merge from submit-queue

run unit tests with go, not just bazel

Follow up to https://github.com/kubernetes/kubernetes/pull/40594, effectively reverts #39105.

I think we should run our unit tests using the official golang infrastructure.  I have no objection to also running them in bazel (or running a subset in bazel), but I don't think that bazel should be the primary unit test method.

@smarterclayton @liggitt @ixdy @spxtr