Update ITS json for MC according to QC PR1150

Author: iravasen

DATA/production/qc-async/its.json

@@ -37,11 +37,9 @@
         },
         "taskParameters": {
           "layer": "1111111",
-          "clusterDictionaryPath": "./ITSdictionary.bin",
-          "runNumberPath": "",
-          "geomPath": "./o2sim_geometry.root",
           "nThreads": "1",
-	  "nBCbins" : "103"
+	  "nBCbins" : "103",
+	  "dicttimestamp" : "0"
         }
       },
       "ITSTrackTask": {