Remove access-file

example.config.toml

 # access.
 cloak-port = 443
 
-# Path to access file. Each time when proxy starts up, it writes an
-# access file. This file contains a JSON with settings how to access
-# this proxy.
-#
-# Pass filepath here or '-' if you want to dump into stdout.
-access-file = "-"
-
 # network defines different network-related settings
 [network]
 # please be aware that mtg needs to do some external requests. For

raw_config.go

 	TCPBuffer  string `toml:"tcp-buffer"`
 	PreferIP   string `toml:"prefer-ip"`
 	CloakPort  uint   `toml:"cloak-port"`
-	AccessFile string `toml:"access-file"`
 	Probes     struct {
 		Time struct {
 			Enabled       bool   `toml:"enabled"`