RFR: 8346921: Remove unused arg in markWord::must_be_preserved

[Albert Mingkun Yang]

On Thu, 2 Jan 2025 06:44:20 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

> Trivial removing unused method arg.

Thanks for review.

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PR Comment: https://git.openjdk.org/jdk/pull/22900#issuecomment-2569100873