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