These are the packages we skipped for RPC sample generation in #4720

• google-cloud-compute-v1: Some sample functions have no body except for OK(). Not clear why.
• google-cloud-logging-v2: The "parent" field on the ListLogEntriesRequest is a repeated string (for listing resources from different parents at the same time) field instead of a string field, which is non AIP compliant. We need to check that the parent field is a string.
• google-cloud-oslogin-v1: There's a common package and some of the resources with CRUD operations are defined in that common package.

Note we also skippep part of Pub/Sub, but that's still under development and we are tracking Pub/Sub sample generation on #4018