RFR: 8328081: Remove unnecessary return statement in method `markWord::displaced_mark_helper` [v2]

[Guoxiong Li]

> Hi all,
> 
> This trivial patch removes unnecessary return statement in method `markWord::displaced_mark_helper`.
> 
> Thanks for taking the time to review.
> 
> Best Regards,
> -- Guoxiong

Guoxiong Li has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:

 - Merge branch 'master' into REMOVE_UNNECESSARY_CODE
 - Remove unnecessary code.

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/18272/files
  - new: https://git.openjdk.org/jdk/pull/18272/files/1fa89aa4..01ca4b01

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=18272&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18272&range=00-01

  Stats: 9049 lines in 201 files changed: 5387 ins; 2872 del; 790 mod
  Patch: https://git.openjdk.org/jdk/pull/18272.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18272/head:pull/18272

PR: https://git.openjdk.org/jdk/pull/18272