MB-16337: Enable test_access_scanner unit test
MB-16337: Enable test_access_scanner unit test

This test was disabled few weeks ago as it failed on CV runs.
With latest builds the failure is not reproducable neither on
local AIX box, nor on Ubuntu container.
The failure is also not reproducable on jenkins runs.
Enabling this test on regular CV runs for now.

Change-Id: Ic7852a0d90c01c9571de596567af7d61b3d31b92
Reviewed-on: http://review.couchbase.org/62520
Tested-by: buildbot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Chiyoung Seo <fcffc23db27b19ee4ebba46695ee6b50e09216a2@couchbase.com>

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