Don't index auto-generated google api crates

[Folyd]

I don't think people would search those google API crates while it nearly reaches 300+ which takes up a lot of capacity. So I think we should remove those crates from the top 20K crates.

BTW, those crates were auto-generated by this repo: https://github.com/Byron/google-apis-rs

[Folyd]

Also for https://github.com/awslabs/aws-sdk-rust