RFR: 8345629: Remove expired flags in JDK 25

[David Holmes]

All flags that expire in JDK 25 are removed from the special_jvm_flags table.

The Java command manpage is updated so that flags removed in the previous release are deleted from the "Removed flags" section and a link added to the previous release manpage. Any documented obsolete flags are moved to the "Removed section" from the "Obsoleted" section.

Testing: tiers 1-3 sanity

Thanks

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Commit messages:
 - 8345629: Remove expired flags in JDK 25

Changes: https://git.openjdk.org/jdk/pull/22593/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22593&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8345629
  Stats: 73 lines in 2 files changed: 8 ins; 64 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/22593.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22593/head:pull/22593

PR: https://git.openjdk.org/jdk/pull/22593