AdvancedWebServer: remove mDNS from loop as well

Author: igrr

hardware/esp8266com/esp8266/libraries/ESP8266WebServer/examples/AdvancedWebServer/AdvancedWebServer.ino

@@ -123,7 +123,6 @@ void setup ( void ) {
 }
 
 void loop ( void ) {
-	mdns.update();
 	server.handleClient();
 }