hg: jdk9/hs-rt/hotspot: 8138846: Remove unused enum ConcurrentGCThread::CGC_flag_type

[per.liden at oracle.com]

Changeset: 231ab9f9a824
Author:    pliden
Date:      2015-10-06 08:05 +0200
URL:       http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/231ab9f9a824

8138846: Remove unused enum ConcurrentGCThread::CGC_flag_type
Reviewed-by: jwilhelm, brutisso

! src/share/vm/gc/shared/concurrentGCThread.cpp
! src/share/vm/gc/shared/concurrentGCThread.hpp