Drop the rc file flag.
Drop the rc file flag.

Hopefully no file(s) exists on travis, and with the changes coming in bazel
(https://github.com/bazelbuild/bazel/issues/4502#issuecomment-372697374)
trying to ensure no files will become version dependent.

bazelbuild/bazel-skylib,bazelbuild/bazel-skylib,bazelbuild/bazel-skylib