RFR: 8333954: Parallel: Remove unused arguments of type ParCompactionManager*

[Albert Mingkun Yang]

Trivial removing unused args.

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Commit messages:
 - pgc-trivial

Changes: https://git.openjdk.org/jdk/pull/19645/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19645&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8333954
  Stats: 17 lines in 2 files changed: 0 ins; 8 del; 9 mod
  Patch: https://git.openjdk.org/jdk/pull/19645.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19645/head:pull/19645

PR: https://git.openjdk.org/jdk/pull/19645