MB-20598: AddressSanitizer problem in perfsuite
MB-20598: AddressSanitizer problem in perfsuite

This test was being OOM killed so was left out of
the orginal set of fixes. Tap iterator mutation/deletions
need to be released by the client.

Change-Id: I3dced32ed08d4c9fc0c31b38728576df4929c423
Reviewed-on: http://review.couchbase.org/67058
Tested-by: buildbot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Dave Rigby <a09264da4832c7ff1d3bf1608a19f4b870f93750@couchbase.com>
Reviewed-by: Will Gardner <cbd6f5d9092d9ef7d5c0510d53bba134b22c02f2@couchbase.com>

teligent-ru/ep-engine,couchbase/ep-engine,daverigby/ep-engine,daverigby/ep-engine,membase/ep-engine,daverigby/ep-engine,daverigby/kv_engine,couchbase/ep-engine,membase/ep-engine,teligent-ru/ep-engine,membase/ep-engine,daverigby/kv_engine,daverigby/kv_engine,couchbase/ep-engine,teligent-ru/ep-engine,couchbase/ep-engine,membase/ep-engine,teligent-ru/ep-engine,daverigby/kv_engine,daverigby/ep-engine