chore(controller): remove unused file

backend/services/controller/internal/api/mtp.go

@@ -1,55 +0,0 @@
-package api
-
-// import (
-// 	"encoding/json"
-// 	"net"
-// 	"net/http"
-// 	"time"
-
-// 	"golang.org/x/sys/unix"
-// )
-
-// type mqttInfo struct {
-// 	MqttRtt time.Duration
-// }
-
-// func (a *Api) mtpInfo(w http.ResponseWriter, r *http.Request) {
-// 	//TODO: address with value from env or something like that
-// 	conn, err := net.Dial("tcp", "127.0.0.1:1883")
-// 	if err != nil {
-// 		json.NewEncoder(w).Encode("Error to connect to broker")
-// 		w.WriteHeader(http.StatusInternalServerError)
-// 		return
-// 	}
-// 	defer conn.Close()
-
-// 	info, err := tcpInfo(conn.(*net.TCPConn))
-// 	if err != nil {
-// 		json.NewEncoder(w).Encode("Error to get TCP socket info")
-// 		w.WriteHeader(http.StatusInternalServerError)
-// 		return
-// 	}
-// 	rtt := time.Duration(info.Rtt) * time.Microsecond
-// 	json.NewEncoder(w).Encode(mqttInfo{
-// 		MqttRtt: rtt / 1000,
-// 	})
-// }
-
-// func tcpInfo(conn *net.TCPConn) (*unix.TCPInfo, error) {
-// 	raw, err := conn.SyscallConn()
-// 	if err != nil {
-// 		return nil, err
-// 	}
-
-// 	var info *unix.TCPInfo
-// 	ctrlErr := raw.Control(func(fd uintptr) {
-// 		info, err = unix.GetsockoptTCPInfo(int(fd), unix.IPPROTO_TCP, unix.TCP_INFO)
-// 	})
-// 	switch {
-// 	case ctrlErr != nil:
-// 		return nil, ctrlErr
-// 	case err != nil:
-// 		return nil, err
-// 	}
-// 	return info, nil
-// }