Revert "Fix issue relate with CollectionUsageThreshold of memory pool"

[gacholio]

Reverts #2993

since the change was causing test failures

j> 14:09:22 Exception in thread "MemoryMXBean notification dispatcher" java.lang.IllegalArgumentException: committed value cannot be larger than the max value
j> 14:09:22 	at java.lang.management.MemoryUsage.<init>(MemoryUsage.java:118)
j> 14:09:22 	at com.ibm.lang.management.internal.ExtendedGarbageCollectorMXBeanImpl.buildGcInfo(ExtendedGarbageCollectorMXBeanImpl.java:94)
j> 14:09:22 	at com.ibm.lang.management.internal.MemoryNotificationThread.dispatchGCNotificationHelper(MemoryNotificationThread.java:95)
j> 14:09:22 	at com.ibm.lang.management.internal.MemoryNotificationThread.processNotificationLoop(Native Method)
j> 14:09:22 	at com.ibm.lang.management.internal.MemoryNotificationThread.run(MemoryNotificationThread.java:183)