RFR: 8184134: HeapRegion::LogOfHRGrainWords is unused [v2]

[Albert Mingkun Yang]

On Mon, 26 Apr 2021 08:56:53 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

>> Trivial change of removing unused code.
>
> Albert Mingkun Yang has updated the pull request incrementally with one additional commit since the last revision:
> 
>   review

Thanks for the review.

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PR: https://git.openjdk.java.net/jdk/pull/3671