RFR: 8343929: Remove PreservedMarksSet::createTask() after JDK-8305895

[Aleksey Shipilev]

On Mon, 11 Nov 2024 10:01:56 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

> Hi all,
> 
>   please review this trivial cleanup after pushing the Compact Object Header JEP (JDK-8305895).
> 
> The method mentioned is unused.
> 
> Testing: gha, local compilation
> 
> Thanks,
>   Thomas

Marked as reviewed by shade (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/22006#pullrequestreview-2426929910