hg: jdk/submit: 8217716: Remove dead code in PhaseChaitin

[claes.redestad at oracle.com]

Changeset: d927fc999582
Author:    redestad
Date:      2019-01-24 14:43 +0100
URL:       http://hg.openjdk.java.net/jdk/submit/rev/d927fc999582

8217716: Remove dead code in PhaseChaitin
Reviewed-by: thartmann

! src/hotspot/share/libadt/vectset.hpp
! src/hotspot/share/opto/chaitin.cpp
! src/hotspot/share/opto/chaitin.hpp
! src/hotspot/share/opto/ifg.cpp