RFR: 8332864: Parallel: Merge ParMarkBitMapClosure into MoveAndUpdateClosure

[Thomas Schatzl]

On Fri, 24 May 2024 07:49:19 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

> Trivial merging a class into its subclass. (Some unused fields/args/methods are also removed.)

Marked as reviewed by tschatzl (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/19383#pullrequestreview-2081219348