r/aws_guardduty(test): rm unnecessary s3 bucket acl config

[jar-b]

Description

Fixes various GuardDuty acceptance tests failing due to unnecessary s3 bucket private ACL configurations.

Relations

Relates #28353

Output from Acceptance Testing

Due to an existing active GuardDuty detector setup, acceptance tests have been omitted for this change.

[github-actions]

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[github-actions]

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[github-actions]

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