RFR: 8331513: Tests should not use the Classpath exception form of the legal header

[Jaikiran Pai]

Can I please get a review of this copyright text only change that removes the "Classpath" exception from these test files and thus addresses https://bugs.openjdk.org/browse/JDK-8331513?

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Commit messages:
 - 8331513: Tests should not use the Classpath exception form of the legal header

Changes: https://git.openjdk.org/jdk/pull/19045/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19045&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8331513
  Stats: 6 lines in 2 files changed: 0 ins; 4 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/19045.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19045/head:pull/19045

PR: https://git.openjdk.org/jdk/pull/19045