RFR: 8336661: Parallel: Remove stacks_empty assert in PSScavenge::invoke

[Albert Mingkun Yang]

On Wed, 17 Jul 2024 16:50:18 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

> Trivial removing redundant asserts.

Thanks for review.

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PR Comment: https://git.openjdk.org/jdk/pull/20218#issuecomment-2236124948