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

variants/nrf52840/meshtiny/variant.cpp

@@ -32,12 +32,12 @@ const uint32_t g_ADigitalPinMap[] = {
 
 void initVariant()
 {
-    // LED1 & LED2
+    // LED1 & LED_BLUE
     pinMode(PIN_LED1, OUTPUT);
     ledOff(PIN_LED1);
 
-    pinMode(PIN_LED2, OUTPUT);
-    ledOff(PIN_LED2);
+    pinMode(LED_BLUE, OUTPUT);
+    ledOff(LED_BLUE);
 
     // 3V3 Power Rail
     pinMode(PIN_3V3_EN, OUTPUT);

variants/nrf52840/meshtiny/variant.h

@@ -47,10 +47,9 @@ extern "C" {
 
 // LEDs
 #define PIN_LED1 (35)
-#define PIN_LED2 (36)
+#define LED_BLUE (36)
 
 #define LED_GREEN PIN_LED1
-#define LED_BLUE PIN_LED2
 
 #define LED_STATE_ON 1 // State when LED is litted