RFR: 8331924: Parallel: Remove unused MutableSpace::mangle_unused_area_complete

[Albert Mingkun Yang]

On Wed, 8 May 2024 12:03:21 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

> Trivial removing dead code.

Thanks for review.

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PR Comment: https://git.openjdk.org/jdk/pull/19137#issuecomment-2101110301