RFR: 8324210: Serial: Remove unused methods in Generation [v2]

[Stefan Karlsson]

On Mon, 22 Jan 2024 15:06:50 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

>> Trivial removing dead code.
>
> Albert Mingkun Yang 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 three additional commits since the last revision:
> 
>  - review
>  - Merge branch 'master' into trivial
>  - trivial

Marked as reviewed by stefank (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/17497#pullrequestreview-1838254505