delete un-used imports and obsolete comments -------------
Commit messages: - 8344664 Changes: https://git.openjdk.org/jdk/pull/22286/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22286&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8344664 Stats: 21 lines in 13 files changed: 0 ins; 21 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/22286.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/22286/head:pull/22286 PR: https://git.openjdk.org/jdk/pull/22286
