RFR: 8314244: Incorrect file headers in new tests from JDK-8312597

[David Holmes]

Trivial fix:

- Test files don't need/use the Classpath Exception.
- The Oracle contact details were missing.

These headers now match other Amazon-only copyrighted test files.

Thanks.

-------------

Commit messages:
 - 8314244: Incorrect file headers in new tests from JDK-8312597

Changes: https://git.openjdk.org/jdk/pull/15282/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=15282&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8314244
  Stats: 16 lines in 2 files changed: 8 ins; 6 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/15282.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15282/head:pull/15282

PR: https://git.openjdk.org/jdk/pull/15282