RFR: 8329775: Serial: Remove unused declarations in serialFullGC.hpp [v2]

[Albert Mingkun Yang]

On Fri, 5 Apr 2024 17:03:32 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 pull request now contains one commit:
> 
>   trivial

Thanks for review.

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PR Comment: https://git.openjdk.org/jdk/pull/18655#issuecomment-2043117580