Automatic merge from submit-queue
bump bazel build to go1.8.1 and remove invalid unit tests
part of https://github.com/kubernetes/kubernetes/issues/38228
I firmly believe that unit tests that check error strings are incorrect unit tests. If we care about what type of error is returned, we need to use public error types. Anywhere we are using generic errors, we don't care other then that we saw an error.
e1adcc2367