RFR: 8260565: JFR: Fix copyright header in tests

[Erik Gahlin]

Hi,

Could I have a review of a fix that removes "Classpath" exception in the copyright header from the JFR tests. I had to update jdk.jfr.event.compilerTestDeoptimization.java because it relied on the line number of the file. A missing line ending was added at the end to some files as well. 

Testing: jdk/jdk/jfr + tier1,tier2

Thanks
Erik

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

Commit messages:
 - Initial

Changes: https://git.openjdk.java.net/jdk/pull/3130/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=3130&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8260565
  Stats: 1664 lines in 552 files changed: 0 ins; 1104 del; 560 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3130.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3130/head:pull/3130

PR: https://git.openjdk.java.net/jdk/pull/3130