Disable the stats test
Disable the stats test

There seems to be something wrong in the test causing it
to fail due to timeouts.

Change-Id: I628e7bb427090008661bcdff0a22205ba5bd2dfb
Reviewed-on: http://review.couchbase.org/58445
Reviewed-by: Dave Rigby <a09264da4832c7ff1d3bf1608a19f4b870f93750@couchbase.com>
Tested-by: buildbot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>

daverigby/kv_engine,couchbase/memcached,daverigby/memcached,couchbase/memcached,daverigby/kv_engine,daverigby/memcached,owendCB/memcached,couchbase/memcached,owendCB/memcached,daverigby/kv_engine,daverigby/memcached,daverigby/kv_engine,owendCB/memcached,couchbase/memcached,daverigby/memcached,owendCB/memcached