full_cal_reco.py: drop tile readout field

benchmarks/clustering/options/full_cal_reco.py

@@ -346,8 +346,8 @@ cb_hcal_merger = CalHitsMerger("cb_hcal_merger",
         inputHitCollection=cb_hcal_reco.outputHitCollection,
         outputHitCollection="HcalBarrelHitsRecoXY",
         readoutClass="HcalBarrelHits",
-        fields=["tile"],
-        fieldRefNumbers=[0])
+        fields=[],
+        fieldRefNumbers=[])
 algs.append(cb_hcal_merger)
 
 cb_hcal_cl = IslandCluster("cb_hcal_cl",