remove unused exectuor

src/main/kotlin/Main.kt

@@ -6,14 +6,13 @@ import java.net.InetSocketAddress
 fun main(args: Array<String>) {
     val server = HttpServer.create(InetSocketAddress(8000), 0)
     server.createContext("/", MyHandler())
-    server.executor = null // creates a default executor
     server.start()
     println("Server listing on port 8000")
 }
 
 class MyHandler : HttpHandler {
     override fun handle(httpExchange: HttpExchange) {
-        val payload = "This is the payload 1"
+        val payload = "This is the payload"
         httpExchange.sendResponseHeaders(200, payload.length.toLong())
         val os = httpExchange.responseBody
         os.write(payload.toByteArray())