Obsolete UseNotificationThread flag which was deprecated in JDK 23. Testing: tier1..tier5
------------- Commit messages: - fix Changes: https://git.openjdk.org/jdk/pull/20381/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20381&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8331015 Stats: 41 lines in 7 files changed: 1 ins; 31 del; 9 mod Patch: https://git.openjdk.org/jdk/pull/20381.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/20381/head:pull/20381 PR: https://git.openjdk.org/jdk/pull/20381
