Don't check for expireTime if node is not in REMOVED
Patch by thobbs, reviewed by brandonwilliams for CASSANDRA-6564
Merge branch 'cassandra-1.2' into cassandra-2.0
Don't check for expireTime is node isn't in REMOVED
Patch by thobbs, reviewed by brandonwilliams for CASSANDRA-6564
Merge branch 'cassandra-2.0' into trunk