RFR: 8338315: G1: G1CardTableEntryClosure:do_card_ptr remove unused parameter worker_id

[Ivan Walulya]

Please review this trivial change to remove an unused parameter worker_id in G1CardTableEntryClosure:do_card_ptr.

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Commit messages:
 - cleanup

Changes: https://git.openjdk.org/jdk/pull/20569/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20569&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8338315
  Stats: 6 lines in 3 files changed: 1 ins; 1 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/20569.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20569/head:pull/20569

PR: https://git.openjdk.org/jdk/pull/20569