hg: jdk/jdk: 8225804: SA: Remove unused CollectedHeap.oopOffset() method

[zgu at redhat.com]

Changeset: 8259c22be42c
Author:    zgu
Date:      2019-06-18 13:11 -0400
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/8259c22be42c

8225804: SA: Remove unused CollectedHeap.oopOffset() method
Reviewed-by: rkennke

! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/shared/CollectedHeap.java
! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/oops/ObjectHeap.java