Board firmware update broke ESP32 MQTT

ampel-firmware/mqtt.cpp

@@ -30,10 +30,9 @@ namespace mqtt {
   void initialize(const char *sensorId) {
     json_sensor_format = PSTR("{\"time\":\"%s\", \"co2\":%d, \"temp\":%.1f, \"rh\":%.1f}");
     snprintf(publish_topic, sizeof(publish_topic), "CO2sensors/%s", sensorId);
-#if defined(ESP8266)
-    espClient.setInsecure(); // Sorry, we don't want to flash the sensors every 3 months.
-#endif
-    // mqttClient.setSocketTimeout(config::mqtt_timeout); //NOTE: somehow doesn't seem to have any effect on connect()
+    // The sensor doesn't check the fingerprint of the MQTT broker, because otherwise this fingerprint should be updated
+    // on the sensor every 3 months. The connection can still be encrypted, though:
+    espClient.setInsecure(); // If not available for ESP32, please update Arduino IDE / PlatformIO
     mqttClient.setServer(config::mqtt_server, config::mqtt_port);
 
     sensor_console::defineIntCommand("mqtt", setMQTTinterval, F("60 (Sets MQTT sending interval, in s)"));