Remove go implementation

Having go code in the repo may create confusion, as it was a
prototype that's no longer used.

sirtunnel.go

@@ -1,49 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"os"
-	"os/signal"
-	"net/http"
-	"bytes"
-)
-
-
-func main() {
-
-	args := os.Args[1:]
-	host := args[0]
-	port := args[1]
-        tunnelId := host + "-" + port
-
-	client := &http.Client{}
-
-	caddyAddRouteStr := fmt.Sprintf("{\"@id\":\"%s\",\"match\":[{\"host\":[\"%s\"]}],\"handle\":[{\"handler\":\"reverse_proxy\",\"upstreams\":[{\"dial\":\":%s\"}]}]}", tunnelId, host, port);
-
-	resp, err := http.Post("http://127.0.0.1:2019/config/apps/http/servers/sirtunnel/routes", "application/json", bytes.NewBuffer([]byte(caddyAddRouteStr)))
-
-	if err != nil {
-		fmt.Println("Tunnel creation failed")
-		panic(err)
-	}
-	defer resp.Body.Close()
-
-	fmt.Println("Tunnel created successfully")
-
-	// wait for CTRL-C
-	c := make(chan os.Signal, 1)
-	signal.Notify(c, os.Interrupt)
-	<-c
-
-	fmt.Println("Cleaning up tunnel")
-
-	req, err := http.NewRequest("DELETE", fmt.Sprintf("http://127.0.0.1:2019/id/%s", tunnelId), nil)
-	if err != nil {
-		panic(err)
-	}
-
-	req.Header.Add("Content-Type", "application/json")
-	_, err = client.Do(req)
-
-	fmt.Println("Exiting")
-}