delete old codes

backend/config/config.go

@@ -14,9 +14,6 @@ var version string
 //go:embed name
 var name string
 
-//go:embed config.json
-var defaultConfig string
-
 type LogLevel string
 
 const (
@@ -72,24 +69,3 @@ func GetDBFolderPath() string {
 func GetDBPath() string {
 	return fmt.Sprintf("%s/%s.db", GetDBFolderPath(), GetName())
 }
-
-func GetDefaultConfig() string {
-	apiEnv := GetEnvApi()
-	if len(apiEnv) > 0 {
-		return strings.Replace(defaultConfig, "127.0.0.1:1080", apiEnv, 1)
-	}
-	return defaultConfig
-}
-
-func GetEnvApi() string {
-	return os.Getenv("SINGBOX_API")
-}
-
-func IsSystemd() bool {
-	pid := os.Getppid()
-	cmdline, err := os.ReadFile(fmt.Sprintf("/proc/%d/comm", pid))
-	if err != nil {
-		return false
-	}
-	return string(cmdline) == "systemd\n"
-}

backend/config/config.json

@@ -1,29 +0,0 @@
-{
-  "log": {
-    "level": "info"
-  },
-  "dns": {},
-  "inbounds": [],
-  "outbounds": [
-    {
-      "tag": "direct",
-      "type": "direct"
-    },
-    {
-      "type": "dns",
-      "tag": "dns-out"
-    }
-  ],
-  "route": {
-    "rules": [
-      {
-        "protocol": [
-          "dns"
-        ],
-        "outbound": "dns-out",
-        "action": "route"
-      }
-    ]
-  },
-  "experimental": {}
-}