RFR: JDK-8330024: [AIX] replace my_disclaim64 helper by direct call to disclaim64

[Martin Doerr]

On Wed, 10 Apr 2024 12:56:24 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

> Currently we use a helper function my_disclaim64 to simulate disclaim64.
> The reason documented in the source code was support of (very) old AIX versions. However AIX 7.1 and higher support disclaim64 so the workaround seems to be obsolete.
> See
> https://www.ibm.com/docs/en/aix/7.1?topic=d-disclaim-disclaim64-subroutines
> https://www.ibm.com/docs/en/aix/7.2?topic=d-disclaim-disclaim64-subroutines

LGTM.

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Marked as reviewed by mdoerr (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/18720#pullrequestreview-1992646319