disable latency stats in kv tests
disable latency stats in kv tests

This reverts commit ae96dc5c3ea05dd2e068dbe48206f29f7c30381f.

pavel-paulau/perfrunner,hsharsha/perfrunner,vmx/perfrunner,EricACooper/perfrunner,couchbase/perfrunner,mikewied/perfrunner,dkao-cb/perfrunner,EricACooper/perfrunner,dkao-cb/perfrunner,pavel-paulau/perfrunner,couchbase/perfrunner,pavel-paulau/perfrunner,couchbase/perfrunner,EricACooper/perfrunner,EricACooper/perfrunner,thomas-couchbase/perfrunner,pavel-paulau/perfrunner,couchbase/perfrunner,couchbase/perfrunner,pavel-paulau/perfrunner,hsharsha/perfrunner,vmx/perfrunner,thomas-couchbase/perfrunner,PaintScratcher/perfrunner,mikewied/perfrunner,couchbase/perfrunner,PaintScratcher/perfrunner