RFR: 8335706: G1: Remove unused G1ConcurrentRefine::RemSetSamplingClosure::_cset [v2]

[Albert Mingkun Yang]

On Fri, 5 Jul 2024 09:01:26 GMT, Ivan Walulya <iwalulya at openjdk.org> wrote:

>> Trivial cleanup of unused field G1ConcurrentRefine::RemSetSamplingClosure::_cset.
>
> Ivan Walulya has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains three commits:
> 
>  - Merge remote-tracking branch 'upstream/master' into JDK-8335706
>  - reorder
>  - Trivial

Marked as reviewed by ayang (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/20035#pullrequestreview-2160291349