Remove ToString0[T] usage to fix golangci-lint

option/inbound.go

@@ -145,7 +145,7 @@ type ShadowsocksDestination struct {
 
 type TunInboundOptions struct {
 	InterfaceName string        `json:"interface_name,omitempty"`
-	MTU           uint32        `json:"mtu,omitempty,omitempty"`
+	MTU           uint32        `json:"mtu,omitempty"`
 	Inet4Address  *ListenPrefix `json:"inet4_address,omitempty"`
 	Inet6Address  *ListenPrefix `json:"inet6_address,omitempty"`
 	AutoRoute     bool          `json:"auto_route,omitempty"`