RFR: 8338447: Remove InstanceKlass::_is_marked_dependent

[Aleksey Shipilev]

On Thu, 15 Aug 2024 13:04:03 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> Please review this trivial change.  I ran the SA tests to make sure the is_marked_dependent flag in vmStructs wasn't used there.

I wonder what removed the last use of it. But this is fine.

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Marked as reviewed by shade (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/20595#pullrequestreview-2240379919