hg: jdk/sandbox: 8214531: HeapMonitorEventOnOffTest.java test fails with "Statistics should be null to begin with"

[chris.hegarty at oracle.com]

Changeset: 2708a32dc964
Author:    jcbeyler
Date:      2018-12-06 14:18 -0800
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/2708a32dc964

8214531: HeapMonitorEventOnOffTest.java test fails with "Statistics should be null to begin with"
Summary: Remove the enable sampling and let the underlying method call it
Reviewed-by: sspitsyn, phh

! test/hotspot/jtreg/serviceability/jvmti/HeapMonitor/MyPackage/HeapMonitorEventOnOffTest.java