RFR: 8337192: [BACKOUT] JDK-8336098 G1: Refactor G1RebuildRSAndScrubTask

[Thomas Schatzl]

On Thu, 25 Jul 2024 09:58:00 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

> Clean revert of JDK-8336098.
> 
> Test: 4/100 failing rate before  and 0/400 afterwards

+trivial

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Marked as reviewed by tschatzl (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/20324#pullrequestreview-2199260478