hg: jdk/sandbox: 8207689: Remove perfCounter _load_instance_class_failCounter used by deleted flag UnsyncloadClass

[chris.hegarty at oracle.com]

Changeset: f8626bcc1698
Author:    hseigel
Date:      2018-10-10 10:18 -0400
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/f8626bcc1698

8207689: Remove perfCounter _load_instance_class_failCounter used by deleted flag UnsyncloadClass
Summary: Delete the perfCounter
Reviewed-by: lfoltan, acorn, dholmes

! src/hotspot/share/classfile/classLoader.cpp
! src/hotspot/share/classfile/classLoader.hpp