diff --git a/authcollection.go b/authcollection.go
index fb78dd7..a441ad3 100644
--- a/authcollection.go
+++ b/authcollection.go
@@ -299,8 +299,6 @@ func (sc *AuthCollection) RemoveByAccId(accid primitive.ObjectID) {
 	sc.lock.Lock()
 	defer sc.lock.Unlock()
 
-	logger.Println("AuthCollection.RemoveByAccId :", accid.Hex())
-
 	var sk string
 	if on, ok := sc.reverseOn[accid]; ok {
 		sk = on
@@ -326,8 +324,6 @@ func (sc *AuthCollection) RemoveBySessionKey(sk string, publish bool) (accid pri
 	sc.lock.Lock()
 	defer sc.lock.Unlock()
 
-	logger.Println("AuthCollection.RemoveBySessionKey :", sk, publish)
-
 	if publish {
 		// 나한테 있든 없든 무조건 publish해야 함
 		sc.SessionRemoved(sk)