RFR: 8346602: Remove unused macro parameters in `jni.cpp`

[duke]

On Thu, 19 Dec 2024 08:16:54 GMT, Qizheng Xing <qxing at openjdk.org> wrote:

> Some of the macros in `jni.cpp`, including `DEFINE_GETSCALARARRAYELEMENTS`, `DEFINE_RELEASESCALARARRAYELEMENTS`, `DEFINE_GETSCALARARRAYREGION` and `DEFINE_SETSCALARARRAYREGION`, have unused parameters.
> 
> This patch removes them.

@MaxXSoft 
Your change (at version a7ec34034e0e6c1569db9caf3506d1b1772a8e0c) is now ready to be sponsored by a Committer.

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PR Comment: https://git.openjdk.org/jdk/pull/22824#issuecomment-2556623954