RFR: 8319541: G1: Inline G1RemoveSelfForwardsTask into RestoreRetainedRegionsTask [v2]

[Thomas Schatzl]

> Hi,
> 
>   please review this change that inlines the `G1RemoveSelfForwardsTask` into the `RestoreRetainedRegionsTask` because the former is only used by the latter, and the latter only forwards to the former anyway.
> 
> Testing: local compilation
> 
> Thanks,
>   Thomas

Thomas Schatzl has updated the pull request incrementally with one additional commit since the last revision:

  Inline G1RemoveSelfForwardsTask into evacuate task

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/16522/files
  - new: https://git.openjdk.org/jdk/pull/16522/files/25f165ad..01fc1f3b

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=16522&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=16522&range=00-01

  Stats: 473 lines in 4 files changed: 188 ins; 280 del; 5 mod
  Patch: https://git.openjdk.org/jdk/pull/16522.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/16522/head:pull/16522

PR: https://git.openjdk.org/jdk/pull/16522