RFR: 8317797: G1: Remove unimplemented predict_will_fit

[Albert Mingkun Yang]

On Tue, 10 Oct 2023 11:53:29 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

> Trivial removing dead code.

Thanks for the review.

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PR Comment: https://git.openjdk.org/jdk/pull/16116#issuecomment-1757239181