Google documentation to drop googleapis.dev reference pages

Google is moving away from the language specific docs in googleapis.dev and consolidating everything with the same style under cloud.google.com

The old googleapis.dev doc sites now display a banner with:

"We're moving! Starting in November, 2022, documentation for Cloud client libraries will move to its new home on cloud.google.com. Learn more about it in our blog post: Productivity unlocked with new Cloud SDK reference docs."

e.g: https://googleapis.dev/dotnet/Google.Cloud.Bigtable.V2/lates...