Disable the ShareClassesCMLOpenJ9 test as SCC by default reverted

Test will be re-enabled when the performance issues are worked out.

issue: #4227

Signed-off-by: Dan Heidinga <daniel_heidinga@ca.ibm.com>

test/functional/cmdLineTests/shareClassTests/SCCMLTests/playlist.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
 <!--
-  Copyright (c) 2016, 2018 IBM Corp. and others
+  Copyright (c) 2016, 2019 IBM Corp. and others
 
   This program and the accompanying materials are made available under
   the terms of the Eclipse Public License 2.0 which accompanies this
@@ -381,6 +381,11 @@
 	</test>
 	<test>
 		<testCaseName>ShareClassesCMLOpenJ9</testCaseName>
+		<disabled>
+			SharedClasses by default is disabled from the 0.12.0 release while we
+			work through some performance issues related to lost iprofiler data.
+			See issue: https://github.com/eclipse/openj9/issues/4222
+		</disabled>
 		<variations>
 			<variation>Mode110</variation>
 			<variation>Mode610</variation>