git: openjdk/jdk: 8260416: Remove unused method ReferenceProcessor::is_mt_processing_set_up()

[Leo Korinth]

Changeset: 1a7adc86
Author:    Leo Korinth <lkorinth at openjdk.org>
Date:      2021-02-18 11:43:49 +0000
URL:       https://git.openjdk.java.net/jdk/commit/1a7adc86

8260416: Remove unused method ReferenceProcessor::is_mt_processing_set_up()

Reviewed-by: ayang, kbarrett

! src/hotspot/share/gc/shared/referenceProcessor.cpp
! src/hotspot/share/gc/shared/referenceProcessor.hpp