RFR: 8332883: Some simple cleanup in vectornode.cpp

[Hamlin Li]

Hi,
Can you review this simple cleanup in vectornode.cpp?
Thanks!

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Commit messages:
 - Initial commit

Changes: https://git.openjdk.org/jdk/pull/19392/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19392&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8332883
  Stats: 17 lines in 1 file changed: 0 ins; 13 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/19392.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19392/head:pull/19392

PR: https://git.openjdk.org/jdk/pull/19392