More variant.h cleanup. LED_NOTIFICATION, remove dead code, etc (#9477)

variants/nrf52840/MakePython_nRF52840_oled/variant.cpp

@@ -32,7 +32,4 @@ void initVariant()
     // LED1 & LED2
     pinMode(PIN_LED1, OUTPUT);
     ledOff(PIN_LED1);
-
-    pinMode(PIN_LED2, OUTPUT);
-    ledOff(PIN_LED2);
 }

variants/nrf52840/MakePython_nRF52840_oled/variant.h

@@ -27,12 +27,10 @@ extern "C" {
 
 // LEDs
 #define PIN_LED1 (32 + 10) // LED        P1.15
-#define PIN_LED2 (-1)      //
 
 #define LED_GREEN PIN_LED1
-#define LED_BLUE PIN_LED2
 
-#define LED_STATE_ON 0 // State when LED is litted
+#define LED_STATE_ON 0 // State when LED is lit
 
 /*
  * Buttons