test: sql(..., strip_metadata=True) usability parameter

Summary

• test: sql(..., strip_metadata=True) usability parameter

If it's set only the "rows" part of the response is returned. This parameter is True by default because in most cases this is what we want.

• test: cleanup: sudo_sql(...) -> sql(..., sudo=True)

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• Cherry-pick to: none
• Docs follow-up: not necessary