RFR: 8339524: Clean up ExtendedRobot tests

[Harshitha Onkar]

On Wed, 4 Sep 2024 03:34:34 GMT, Alisen Chung <achung at openjdk.org> wrote:

> Cleaning up tests building ExtendedRobot that shouldn't be.

Are these the only two tests being changed as part of this PR?
Please update copyright years and expand import statements.

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PR Review: https://git.openjdk.org/jdk/pull/20846#pullrequestreview-2287285431