RFR: 8336163: Remove declarations of some debug-only methods in release build [v2]

[Qizheng Xing]

On Thu, 11 Jul 2024 07:12:35 GMT, Qizheng Xing <qxing at openjdk.org> wrote:

>> Some of the methods are defined only in debug mode, but their declarations still exist in release mode.
>> 
>> This is considered a bug because these methods may be called mistakenly in release mode and cause the build to fail.
>
> Qizheng Xing has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Update copyright.

Thanks for the review.

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PR Comment: https://git.openjdk.org/jdk/pull/20131#issuecomment-2222227563