From 3676ccdbd69f5088c413c07b468067240ccc2f3e Mon Sep 17 00:00:00 2001
From: okJiang <819421878@qq.com>
Date: Mon, 14 Nov 2022 11:00:28 +0800
Subject: [PATCH] revert 39030

---
 dumpling/export/config.go | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/dumpling/export/config.go b/dumpling/export/config.go
index 548535ed486ac..62ef45b45a0ae 100644
--- a/dumpling/export/config.go
+++ b/dumpling/export/config.go
@@ -221,9 +221,6 @@ func (conf *Config) GetDriverConfig(db string) *mysql.Config {
 	driverCfg.MaxAllowedPacket = 0
 	if conf.Security.DriveTLSName != "" {
 		driverCfg.TLSConfig = conf.Security.DriveTLSName
-	} else {
-		// Use TLS first.
-		driverCfg.TLSConfig = "preferred"
 	}
 	if conf.AllowCleartextPasswords {
 		driverCfg.AllowCleartextPasswords = true