RFR: 8339783: Implement JEP 479: Remove the Windows 32-bit x86 Port [v13]

[Aleksey Shipilev]

On Tue, 29 Oct 2024 20:22:03 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

>> This is the implementation of [JEP 479: _Remove the Windows 32-bit x86 Port_](https://openjdk.org/jeps/479).
>> 
>> This is the summary of JEP 479:
>>> Remove the source code and build support for the Windows 32-bit x86 port. This port was [deprecated for removal in JDK 21](https://openjdk.org/jeps/449) with the express intent to remove it in a future release.
>
> Magnus Ihse Bursie has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Fix 32/64-bit confusion in comment in VirtualMachineImpl.c

I am basically okay with this PR. Only a few leftover comments.

make/hotspot/gensrc/GensrcAdlc.gmk line 50:

> 48:     ADLC_CFLAGS := -nologo -EHsc
> 49:     ADLC_CFLAGS_WARNINGS := -W3 -D_CRT_SECURE_NO_WARNINGS \
> 50:          -D_CRT_DECLARE_NONSTDC_NAMES -D_CRT_NONSTDC_NO_WARNINGS

Not clear why do we need these new warnings? I don't right away see anything in ADLC that needs it.

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Marked as reviewed by shade (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/21744#pullrequestreview-2404648390
PR Review Comment: https://git.openjdk.org/jdk/pull/21744#discussion_r1822494914