test_curr_items_dead: Wait for ep_queue_size==0 before test end
test_curr_items_dead: Wait for ep_queue_size==0 before test end

Check that diskqueue sizes return to zero when deleting all items in a
vBucket.

Change-Id: Ib34f0a0f2dfe20f7ed80bf384367623fea472c9f
Reviewed-on: http://review.couchbase.org/84102
Reviewed-by: Manu Dhundi <158873d90a7ef40f3637a222b7329c09d0222554@couchbase.com>
Tested-by: Build Bot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>

daverigby/kv_engine,daverigby/kv_engine,daverigby/kv_engine,daverigby/kv_engine