[jdk16u] Integrated: 8263030: Remove Shenandoah leftovers from ReferenceProcessor

[Aleksey Shipilev]

On Mon, 15 Mar 2021 10:58:12 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Shenandoah is no longer using the shared ReferenceProcessor. We can remove remaining Shenandoah leftovers there.
> 
> Additional testing:
>  - [x] Linux x86_64 fastdebug, `hotspot_gc_shenandoah`

This pull request has now been integrated.

Changeset: 2c6b47c6
Author:    Aleksey Shipilev <shade at openjdk.org>
URL:       https://git.openjdk.java.net/jdk16u/commit/2c6b47c6
Stats:     2 lines in 1 file changed: 0 ins; 1 del; 1 mod

8263030: Remove Shenandoah leftovers from ReferenceProcessor

Backport-of: ef5e13d263b6d4aaa50e777f7a3fc818293126c8

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PR: https://git.openjdk.java.net/jdk16u/pull/81