Integrated: 8373048: Genshen: Remove dead code from Shenandoah

[Xiaolong Peng]

On Wed, 3 Dec 2025 20:55:09 GMT, Xiaolong Peng <xpeng at openjdk.org> wrote:

> Trivial PR to remove dead code from Shenandoah. I noticed some dead code in shenandoahFreeSet.cpp when I was working on https://github.com/openjdk/jdk/pull/26171, this PR is to clean up the dead code in shenandoahFreeSet.cpp and some other files, no functional change at all.
> 
> ### Test
> - [x] hotspot_gc_shenandoah
> - [x] GHA

This pull request has now been integrated.

Changeset: 8f8fda7c
Author:    Xiaolong Peng <xpeng at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/8f8fda7c80b57e8a36827cc260f0be0e5d61f6a6
Stats:     145 lines in 7 files changed: 0 ins; 143 del; 2 mod

8373048: Genshen: Remove dead code from Shenandoah

Reviewed-by: wkemper

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PR: https://git.openjdk.org/jdk/pull/28647