Remove Unity DigitlaSensor

src/Things/DigitalSensor.cs

@@ -41,13 +41,6 @@ namespace RoboidControl {
         }
         private bool stateUpdated = false;
 
-#if UNITY_5_3_OR_NEWER
-        /// @copydoc Passer::RoboidControl::Thing::CreateComponent 
-        public override void CreateComponent() {
-            this.component = Unity.DigitalSensor.Create(this);
-            this.component.core = this;
-        }
-#endif
         /// <summary>
         /// Function used to generate binary data for this digital sensor
         /// </summary>