RFR: 8371643: Remove ThreadLocalAllocBuffer::_reserve_for_allocation_prefetch [v4]

[Albert Mingkun Yang]

On Mon, 17 Nov 2025 09:35:49 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

>> Trivial removing obsoleted code for unsupported arch.
>> 
>> Test: tier1
>
> Albert Mingkun Yang has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - review
>  - patch

Thanks for review.

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PR Comment: https://git.openjdk.org/jdk/pull/28240#issuecomment-3546476614