8364254: Serial: Remove soft ref policy update in WhiteBox FullGC

[albertnetymk]

Simple removing Serial specific logic in WB_FullGC, because Serial full-gc handles white-box full-gc already.

Test: tier1-3

---

Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
• Change must not contain extraneous whitespace
• Commit message must refer to an issue

Issue

• JDK-8364254: Serial: Remove soft ref policy update in WhiteBox FullGC (Enhancement - P4)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk.git pull/26528/head:pull/26528
$ git checkout pull/26528

Update a local copy of the PR:
$ git checkout pull/26528
$ git pull https://git.openjdk.org/jdk.git pull/26528/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 26528

View PR using the GUI difftool:
$ git pr show -t 26528

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk/pull/26528.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back ayang! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

❗ This change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.

[openjdk]

@albertnetymk The following label will be automatically applied to this pull request:

• hotspot

When this pull request is ready to be reviewed, an "RFR" email will be sent to the corresponding mailing list. If you would like to change these labels, use the /label pull request command.

[mlbridge]

Webrevs

• 00: Full (d95ce7ed)

[albertnetymk]

/cc hotspot-gc

[openjdk]

@albertnetymk
The hotspot-gc label was successfully added.