x/pkgsite: documentation too large for google.golang.org/api/compute/v1

[jba]

https://pkg.go.dev/google.golang.org/api@v0.30.0/compute/v1?tab=doc says "documentation too large".

[jba]

The github.com/aws/aws-sdk-go/service/ec2 package also has doc too large to display.

[jba]

Also github.com/ying32/govcl/vcl/api.

The largest of these is the aws package, at over 15M.

[gopherbot]

Change https://golang.org/cl/246678 mentions this issue: internal/fetch: increase max documentation size