var request = require('request');
var options = {
  'method': 'DELETE',
  'url': 'https://<your_api_key>:<your_api_token><subdomain>/v2/accounts/<your_sid>/users/<user_id>',
  'headers': {
  }
};
request(options, function (error, response) {
  if (error) throw new Error(error);
  console.log(response.body);
});

<?php

$curl = curl_init();

curl_setopt_array($curl, array(
  CURLOPT_URL => 'https://<your_api_key>:<your_api_token><subdomain>/v2/accounts/<your_sid>/users/<user_id>',
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => '',
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 0,
  CURLOPT_FOLLOWLOCATION => true,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => 'DELETE',
  CURLOPT_HTTPHEADER => array(
  ),
));

$response = curl_exec($curl);

curl_close($curl);
echo $response;

import requests

url = "https://<your_api_key>:<your_api_token><subdomain>/v2/accounts/<your_sid>/users/<user_id>"

payload = ""
headers = {}

response = requests.request("DELETE", url, headers=headers, data=payload)

print(response.text)

package main

import (
  "fmt"
  "strings"
  "net/http"
  "io/ioutil"
)

func main() {

  url := "https://<your_api_key>:<your_api_token><subdomain>/v2/accounts/<your_sid>/users/<user_id>"
  method := "DELETE"

  payload := strings.NewReader(``)

  client := &http.Client {
  }
  req, err := http.NewRequest(method, url, payload)

  if err != nil {
    fmt.Println(err)
    return
  }
  
  res, err := client.Do(req)
  if err != nil {
    fmt.Println(err)
    return
  }
  defer res.Body.Close()

  body, err := ioutil.ReadAll(res.Body)
  if err != nil {
    fmt.Println(err)
    return
  }
  fmt.Println(string(body))
}