MB-14551: Remove unused configuration parameter
MB-14551: Remove unused configuration parameter

Context: allow_data_loss_during_shutdown

Change-Id: Ie87e705794e54a6d77fd6fa5814829c298ead0a3
Reviewed-on: http://review.couchbase.org/52757
Reviewed-by: Sriram Ganesan <fde85c3124eed34938bb85159f430bf7e5b650f6@couchbase.com>
Reviewed-by: Sundararaman Sridharan <333a3f71d3ad6e01fc953c4fa06bc1f3cd014910@couchbase.com>
Tested-by: Chiyoung Seo <fcffc23db27b19ee4ebba46695ee6b50e09216a2@couchbase.com>

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