RFR: 8339524: Clean up a few ExtendedRobot tests [v2]

[Phil Race]

On Tue, 22 Oct 2024 20:29:45 GMT, Alisen Chung <achung at openjdk.org> wrote:

>> Cleaning up tests building ExtendedRobot that shouldn't be.
>
> Alisen Chung has updated the pull request incrementally with one additional commit since the last revision:
> 
>   update tests

Marked as reviewed by prr (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/20846#pullrequestreview-2386328219