RFR: 8354448: [REDO] Remove friends for ObjectMonitor

[Aleksey Shipilev]

On Mon, 14 Apr 2025 15:17:54 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> This is a redo of the trivial change that failed.  The second commit is the method I should have added.
> Tested with tier1-4, where tier3 has the code to exercise LockingMode=1.
> Thanks,
> Coleen

Marked as reviewed by shade (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/24626#pullrequestreview-2765092127