RFR: 8365146: Remove LockingMode related code from ppc64

[Richard Reingruber]

On Fri, 8 Aug 2025 14:15:34 GMT, Fredrik Bredberg <fbredberg at openjdk.org> wrote:

> @TheRealMDoerr (or @reinrich)
> 
> I've run rudimentary tests using QEMU, but it would be nice if you could take it for a spin on real hardware.

Thanks for the notification. I've asked @MBaesken to do that, since @TheRealMDoerr and myself are currently both not in the office.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/26697#issuecomment-3182706381