[VOL-2694] Use package specific logger instance in all log statements

Change-Id: Iaab59e919c0576e0143c1d9e0facbd2e63f96e1e
diff --git a/internal/pkg/core/statsmanager_test.go b/internal/pkg/core/statsmanager_test.go
index 6ea2487..b4be735 100644
--- a/internal/pkg/core/statsmanager_test.go
+++ b/internal/pkg/core/statsmanager_test.go
@@ -18,17 +18,12 @@
 package core
 
 import (
-	"reflect"
-	"testing"
-
-	"github.com/opencord/voltha-lib-go/v3/pkg/log"
 	"github.com/opencord/voltha-protos/v3/go/openolt"
 	"github.com/opencord/voltha-protos/v3/go/voltha"
+	"reflect"
+	"testing"
 )
 
-func init() {
-	_, _ = log.AddPackage(log.JSON, log.DebugLevel, nil)
-}
 func TestOpenOltStatisticsMgr_PortStatisticsIndication(t *testing.T) {
 	device := &voltha.Device{
 		Id:       "olt",