Remove part of bigquery table section in guide

[c2thorn]

#9204 was reverted so removing the upgrade guide section for it.

Release Note Template for Downstream PRs (will be copied)

[modular-magician]

Hi there, I'm the Modular magician. I've detected the following information about your changes:

Diff report

Your PR generated some diffs in downstreams - here they are.

Terraform GA: Diff ( 1 file changed, 4 deletions(-))
Terraform Beta: Diff ( 1 file changed, 4 deletions(-))