RFR: 8373522: Remove expired flags in JDK 27

[David Holmes]

Please review these trivial start-of-release updates in relation to expired flags:

- the flag table is updated to remove entries for expired flags
-  the Java man page is trivially updated

Thanks

-------------

Commit messages:
 - 8373522: Remove expired flags in JDK 27

Changes: https://git.openjdk.org/jdk/pull/28776/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=28776&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8373522
  Stats: 28 lines in 2 files changed: 2 ins; 26 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/28776.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28776/head:pull/28776

PR: https://git.openjdk.org/jdk/pull/28776