RFR: 8339399: ZGC: Remove unnecessary page reset when splitting pages

[duke]

On Mon, 2 Sep 2024 16:15:57 GMT, Joel Sikström <duke at openjdk.org> wrote:

> There is no use-case where it is necessary to reset the same page after splitting and thus the reset should be removed.
> 
> Tested with tiers 1-3.

@jsikstro 
Your change (at version b6fee02735ad4124e1f6e9eb1ab2654ad7444ddf) is now ready to be sponsored by a Committer.

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PR Comment: https://git.openjdk.org/jdk/pull/20824#issuecomment-2328282425