RFR: 8367507: Parallel: Remove PSPromotionManager::drain_stacks_depth

[Francesco Andreuzzi]

On Fri, 12 Sep 2025 09:12:22 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

> Trivial renaming a method so that we can remove one of two methods with identical implementations, `drain_stacks` and `drain_stacks_depth`.
> 
> Test: tier1

Marked as reviewed by fandreuzzi (Author).

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PR Review: https://git.openjdk.org/jdk/pull/27252#pullrequestreview-3216052442