Code cleanup. The package was added back in [8056174](https://bugs.openjdk.org/browse/JDK-8056174). Thanks to anyone reviewing this change.
------------- Commit messages: - add an `@since` and modify Copyright header Changes: https://git.openjdk.org/jdk/pull/19191/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19191&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8332102 Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/19191.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/19191/head:pull/19191 PR: https://git.openjdk.org/jdk/pull/19191
