RFR: 8283788: Remove unused VM_DeoptimizeAll::_dependee

[David Holmes]

On Mon, 28 Mar 2022 12:53:23 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> SonarCloud complains the `VM_DeoptimizeAll::_dependee` field is not initialized. In fact, it is not used at all and can be removed.

Looks good and trivial.

Thanks,
David

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Marked as reviewed by dholmes (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/7993