[lilliput-jdk21u:lilliput] Integrated: 8307907: [ppc] Remove RTM locking implementation

[Roman Kennke]

On Mon, 25 Mar 2024 18:55:05 GMT, Roman Kennke <rkennke at openjdk.org> wrote:

> Hi all,
> 
> This pull request contains a backport of commit [de8aca27](https://github.com/openjdk/jdk/commit/de8aca27ba87427307186ffd25c029b5c6dbc82e) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.
> 
> The commit being backported was authored by Martin Doerr on 15 Jun 2023 and was reviewed by Matthias Baesken, Richard Reingruber and Thomas Stuefe.
> 
> Thanks!

This pull request has now been integrated.

Changeset: 455ada63
Author:    Roman Kennke <rkennke at openjdk.org>
URL:       https://git.openjdk.org/lilliput-jdk21u/commit/455ada63c500216b150d7fd414eed34b5dffe59f
Stats:     864 lines in 15 files changed: 0 ins; 842 del; 22 mod

8307907: [ppc] Remove RTM locking implementation

Backport-of: de8aca27ba87427307186ffd25c029b5c6dbc82e

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PR: https://git.openjdk.org/lilliput-jdk21u/pull/27