RFR: 8301217: Remove FilteringClosure

[Albert Mingkun Yang]

On Fri, 27 Jan 2023 08:12:59 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

> Simple removing redundant code.
> 
> Test: tier1-5

Thanks for the review.

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PR: https://git.openjdk.org/jdk/pull/12243