6739357: CMS: Switch off CMSPrecleanRefLists1 until 6722113 can be fixed
Summary: Temporarily switch off the precleaning of Reference lists completely until related issues are fixed in 6722113.
Reviewed-by: jmasa, poonam, tonyp
6736341: PermGen size is insufficient for jconsole
Summary: Removing two buggy methods that should not be used, but ended up being used due to a re-organization in the class hierarchy.
Reviewed-by: jmasa, ysr, kamg, coleenp