disable tooltips in secondary views due to bug in nvd3

Change-Id: I73dcb45f0fe71bea7c38ea25c15e0e4440af8305
Reviewed-on: http://review.couchbase.org/31237
Tested-by: buildbot <build@couchbase.com>
Reviewed-by: Pavel Paulau <pavel.paulau@gmail.com>