Integrated: 8338763: GenShen: Global GC should not swap remembered sets for the verifier

[William Kemper]

Clean

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Commit messages:
 - Backport fc1acee6474022d6e9d3c7c2ba2f94f9a5ec5ff0

Changes: https://git.openjdk.org/shenandoah-jdk21u/pull/96/files
  Webrev: https://webrevs.openjdk.org/?repo=shenandoah-jdk21u&pr=96&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8338763
  Stats: 9 lines in 2 files changed: 0 ins; 5 del; 4 mod
  Patch: https://git.openjdk.org/shenandoah-jdk21u/pull/96.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk21u.git pull/96/head:pull/96

PR: https://git.openjdk.org/shenandoah-jdk21u/pull/96