RFR: 8315869: UseHeavyMonitors not used [v2]

[Coleen Phillimore]

On Wed, 20 Sep 2023 18:00:40 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

>> Please review this trivial change to remove the UseHeavyMonitors develop option, in favor of the now non-experimental LockingMode=LM_MONITOR (0) option.  Tested with tier1 locally.
>
> Coleen Phillimore has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Update option comment.

Thanks Dan and Alan for the reviews.

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PR Comment: https://git.openjdk.org/jdk/pull/15845#issuecomment-1728285358