RFR: 8340119: Remove oopDesc::size_might_change()

[Ivan Walulya]

On Fri, 13 Sep 2024 14:12:58 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

> Hi all,
> 
>   please review this change that removes `oopDesc::size_might_change()` because since JDK-8337709 and JDK-8311163 no collector uses the objArray's length field during garbage collection any more.
> 
> Testing: tier1-3
> 
> Thanks,
>   Thomas

Marked as reviewed by iwalulya (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/20999#pullrequestreview-2308194786