RFR: 8353324: Clean up of comments and import after 8319192

[Phil Race]

Somehow I did not commit these changes when fixing JDK-8319192

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Commit messages:
 - 8353324

Changes: https://git.openjdk.org/jdk/pull/24339/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24339&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8353324
  Stats: 4 lines in 1 file changed: 0 ins; 4 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/24339.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24339/head:pull/24339

PR: https://git.openjdk.org/jdk/pull/24339