RFR: 8327477: Parallel: Remove _data_location and _highest_ref in ParallelCompactData [v2]

[Albert Mingkun Yang]

On Thu, 7 Mar 2024 12:43:15 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

>> Trivial removing dead code.
>
> Albert Mingkun Yang has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains two commits:
> 
>  - review
>  - trivial

Thanks for review.

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PR Comment: https://git.openjdk.org/jdk/pull/18139#issuecomment-1985360799