RFR: 8260005: Shenandoah: Remove unused AlwaysTrueClosure in ShenandoahConcurrentRootScanner::roots_do()

[Roman Kennke]

On Tue, 19 Jan 2021 22:09:49 GMT, Zhengyu Gu <zgu at openjdk.org> wrote:

> Please review this trivial cleanup that removes unused AlwaysTrueClosure in ShenandoahConcurrentRootScanner::roots_do()
> 
> Test:
> - [x] hotspot_gc_shenandoah

Looks good and trivial.

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Marked as reviewed by rkennke (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/2152