cleanup(storage): avoid using deprecated `storage::ClientOptions` (#9262)
cleanup(storage): avoid using deprecated `storage::ClientOptions` (#9262)

We have direct access to the `google::cloud::Options` used to initialize
a `RawClient`, we do not need to use the (deprecated) `ClientOptions`
created from it.
googleapis/google-cloud-cpp,googleapis/google-cloud-cpp,googleapis/google-cloud-cpp,googleapis/google-cloud-cpp