Integrated: 8365190: Remove LockingMode related code from share

[Fredrik Bredberg]

On Tue, 2 Sep 2025 08:24:10 GMT, Fredrik Bredberg <fbredberg at openjdk.org> wrote:

> Since the integration of [JDK-8359437](https://bugs.openjdk.org/browse/JDK-8359437) the `LockingMode` flag can no longer be set by the user. After that, a number of PRs has been integrated which has removed all `LockingMode` related code from all platforms (except from zero, which is done in this PR).
> 
> This PR removes `LockingMode` related code from the shared (non-platform specific) files. It also removes the `LockingMode` variable itself.
> 
> Passes tier1-tier7 with no added problems.

This pull request has now been integrated.

Changeset: a2726968
Author:    Fredrik Bredberg <fbredberg at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/a272696813f2e5e896ac9de9985246aaeb9d476c
Stats:     1277 lines in 50 files changed: 8 ins; 1137 del; 132 mod

8365190: Remove LockingMode related code from share

Reviewed-by: aboldtch, dholmes, ayang, coleenp, lmesnik, rcastanedalo

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PR: https://git.openjdk.org/jdk/pull/27041