RFR: 8370965: Remove SigningPackageFromTwoStepAppImageTest test

[Alexander Matveev]

On Thu, 30 Oct 2025 21:44:59 GMT, Alexey Semenyuk <asemenyuk at openjdk.org> wrote:

> The empty commit didn't help. I guess jcheck doesn't allow PRs that only delete files.

I think it wants description in PR. Like "SigningPackageFromTwoStepAppImageTest was removed."

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PR Comment: https://git.openjdk.org/jdk/pull/28068#issuecomment-3470465439