RFR: 8336915: Shenandoah: Remove unused ShenandoahVerifier::verify_after_evacuation

[Aleksey Shipilev]

On Fri, 26 Jul 2024 21:26:01 GMT, Satyen Subramaniam <duke at openjdk.org> wrote:

> Removing the `verify_after_evacuation()` function, since last use was removed in [JDK-8240868](https://bugs.openjdk.org/browse/JDK-8240868) as directed by [JDK-8336915](https://bugs.openjdk.org/browse/JDK-8336915)

This looks fine and trivial.

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Marked as reviewed by shade (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/20365#pullrequestreview-2210573281