Integrated: 8369983: Remove expired ZGC flags for JDK 26

[Joel Sikström]

On Thu, 16 Oct 2025 08:44:04 GMT, Joel Sikström <jsikstro at openjdk.org> wrote:

> Hello,
> 
> The ZGenerational flag was obsoleted in JDK 24 as part of removing the non-generational mode of ZGC in JEP 490. The flag was still obsolete in JDK 25, which is a LTS version, so that user's that might specify/try to use it are prompted with a warning. Now that we're past JDK 25, the flag should be expired. Likewise, the ZMarkStackSpaceLimit flag was obsoleted in JDK 25 and can now be expired in JDK 26.
> 
> Since neither of these flags were documented in `java.md` I haven't added them to the "Removed Java Options" section in that file.

This pull request has now been integrated.

Changeset: d8515f08
Author:    Joel Sikström <jsikstro at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/d8515f084dcd537ccad98f9b15f257baeffae222
Stats:     2 lines in 1 file changed: 0 ins; 2 del; 0 mod

8369983: Remove expired ZGC flags for JDK 26

Reviewed-by: ayang, aboldtch

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PR: https://git.openjdk.org/jdk/pull/27838