RFR: 8370965: Remove SigningPackageFromTwoStepAppImageTest test

[Alexey Semenyuk]

On Thu, 30 Oct 2025 20:03:21 GMT, Alexander Matveev <almatvee at openjdk.org> wrote:

> You need to fix "The pull request body must not be empty."

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

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PR Comment: https://git.openjdk.org/jdk/pull/28068#issuecomment-3470385681