CBES-5: avoid ip verification for es nodes

fix for code that deals with correcting
cluster_run ips.  problem is this causes a couchbase
node running on localhost to take on public
ip of same node when es is running localhost.

Change-Id: I7745265088003f4fb7bf04c2d80cb2b5a9e3c6b0
Reviewed-on: http://review.couchbase.org/23782
Reviewed-by: Ketaki Gangal <ketakigangal@gmail.com>
Tested-by: buildbot <build@couchbase.com>