RFR: 8365190: Remove LockingMode related code from share [v3]

[Fredrik Bredberg]

On Thu, 4 Sep 2025 11:19:14 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

>> Even calling it "lightweight locking" is no longer needed.
>
> I think the name "lightweight locking" is used for the file name and class name, so the name is okay.  It does help if you're trying to understand the history of the locking algorithm.

Fixed

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PR Review Comment: https://git.openjdk.org/jdk/pull/27041#discussion_r2322050243