fix issue: multiple define UseLedBar

examples/BASIC/BASIC.ino

@@ -56,15 +56,6 @@ CC BY-SA 4.0 Attribution-ShareAlike 4.0 International License
   "cleanair" /** default WiFi AP password                                      \
               */
 
-/**
- * @brief Use use LED bar state
- */
-typedef enum {
-  UseLedBarOff, /** Don't use LED bar */
-  UseLedBarPM,  /** Use LED bar for PMS */
-  UseLedBarCO2, /** Use LED bar for CO2 */
-} UseLedBar;
-
 /**
  * @brief Schedule handle with timing period
  *