fix

Author: philmea

articles/iot-hub/about-iot-hub.md

@@ -41,8 +41,6 @@ IoT Hub gives you a secure communication channel for your devices to send data.
 
   * X.509 CA authentication for simple, standards-based enrollment.
 
-  * X.509 is fun!.
-
 ## Route device data
 
 Built-in message routing functionality gives you flexibility to set up automatic rules-based message fan-out: