[VOL-3375]Remove field pkg from log statements

Change-Id: Iee3a7d41ea6cdc539aaf7bc670e09ae27a98030f
diff --git a/db/model/common.go b/db/model/common.go
index 3ee6e9e..e4d4d5a 100644
--- a/db/model/common.go
+++ b/db/model/common.go
@@ -26,7 +26,7 @@
 func init() {
 	// Setup this package so that it's log level can be modified at run time
 	var err error
-	logger, err = log.RegisterPackage(log.JSON, log.ErrorLevel, log.Fields{"pkg": "model"})
+	logger, err = log.RegisterPackage(log.JSON, log.ErrorLevel, log.Fields{})
 	if err != nil {
 		panic(err)
 	}