RFR: 8333779: Parallel: Remove Summary phase related debug print during Full GC

Fri Jun 7 09:27:23 UTC 2024

Trivial removing debug-only prints/methods with limited usefulness.

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Commit messages:
 - pgc-remove-print

Changes: https://git.openjdk.org/jdk/pull/19593/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19593&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8333779
  Stats: 302 lines in 3 files changed: 0 ins; 302 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/19593.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19593/head:pull/19593

PR: https://git.openjdk.org/jdk/pull/19593