RFR: 8300267: Remove duplicated setter/getter for do_not_unlock [v2]

[Robbin Ehn]

On Wed, 18 Jan 2023 02:57:02 GMT, David Holmes <dholmes at openjdk.org> wrote:

>> Robbin Ehn has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Fixed cr year
>
> LGTM. Thanks

Thank @dholmes-ora, @coleenp !

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PR: https://git.openjdk.org/jdk/pull/12044