Reenable logging for QC log files

This reverts commit 74fa85b.

Author: davidrohr

DATA/production/qc-sync/qc-global-epn.json

@@ -23,7 +23,10 @@
       },
       "infologger": {
         "filterDiscardDebug": "true",
-        "filterDiscardLevel": "1"
+        "filterDiscardLevel": "1",
+        "filterDiscardFile": "../../qc-_ID_.log",
+        "filterRotateMaxBytes": "100000000",
+        "filterRotateMaxFiles": "2",
       }
     }
   }