RFR: 8325809: JFR: Remove unnecessary annotation

[Erik Gahlin]

Hi,

Could I have a review of change that removes an unnecessary annotation on some of the JDK events  The` @StackTrace(false)`is inherited from AbstractJDKEvent so it is not needed. Also, the events lacks the `stackTrace` field.

Testing: jdk/jdk/jfr

Thanks
Erik

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Commit messages:
 - Initial

Changes: https://git.openjdk.org/jdk/pull/17840/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=17840&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8325809
  Stats: 6 lines in 3 files changed: 0 ins; 3 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/17840.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17840/head:pull/17840

PR: https://git.openjdk.org/jdk/pull/17840