diff --git a/sysutils.go b/sysutils.go
index 1335c52..e28b2e3 100644
--- a/sysutils.go
+++ b/sysutils.go
@@ -26,39 +26,6 @@ func IsDevEnv() bool {
 	return serverEnv == DEV_ENV
 }
 
-/*
-func ExtractRegisterTimeFromSessionId(sessionId string) int64 {
-	tmpStrings := strings.Split(sessionId, "_")
-	if len(tmpStrings) < 4 {
-		return 0
-	}
-	return new(q5.XValue).SetString(tmpStrings[1]).GetInt64()
-}
-
-func ExtractGameIdFromAccountId(accountId string) int32 {
-	tmpStrings := strings.Split(accountId, "_")
-	if len(tmpStrings) < 2 {
-		return 0
-	}
-	return new(q5.XValue).SetString(tmpStrings[1]).GetInt32()
-}
-
-func ExtractChannelFromAccountId(accountId string) int32 {
-	tmpStrings := strings.Split(accountId, "_")
-	if len(tmpStrings) < 2 {
-		return 0
-	}
-	return new(q5.XValue).SetString(tmpStrings[0]).GetInt32()
-}
-
-func ExtractOpenIdFromAccountId(accountId string) string {
-	tmpStrings := strings.Split(accountId, "_")
-	if len(tmpStrings) < 3 {
-		return ""
-	}
-	return strings.Join(tmpStrings[2:], "_")
-}
-*/
 func New[T any](cb func(*T)) *T {
 	obj := new(T)
 	cb(obj)