Remove "unused" variable for return value
Remove "unused" variable for return value

Using the variable indicates that it might change somewhere
in the function, but we never change it..

Change-Id: I02cf6bdaa228956236b9103603ba7c7e6a4e9991
Reviewed-on: http://review.couchbase.org/13768
Reviewed-by: Michael Wiederhold <a17fed27eaa842282862ff7c1b9c8395a26ac320@couchbase.com>
Tested-by: Trond Norbye <60edd2ef23891a753f231b0c6f161dc634079a93@gmail.com>

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