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

variants/nrf52840/ELECROW-ThinkNode-M1/variant.cpp

@@ -32,15 +32,8 @@ const uint32_t g_ADigitalPinMap[] = {
 
 void initVariant()
 {
-    // LED1 & LED2
     pinMode(PIN_LED1, OUTPUT);
     ledOff(PIN_LED1);
-
-    pinMode(PIN_LED2, OUTPUT);
-    ledOff(PIN_LED2);
-
-    pinMode(PIN_LED3, OUTPUT);
-    ledOff(PIN_LED3);
 }
 
 void variant_shutdown()

variants/nrf52840/ELECROW-ThinkNode-M1/variant.h

@@ -41,20 +41,15 @@ extern "C" {
 #define NUM_ANALOG_INPUTS (1)
 #define NUM_ANALOG_OUTPUTS (0)
 
-#define PIN_LED2 -1
-#define PIN_LED3 -1
-
 // LED
 #define PIN_LED1 (32 + 6) // red
 #define LED_POWER (32 + 4)
-#define USER_LED (0 + 13) // green
+#define LED_NOTIFICATION (0 + 13) // green
 // USB_CHECK
 #define EXT_PWR_DETECT (32 + 3)
 #define ADC_V (0 + 8)
 
-#define LED_RED PIN_LED3
 #define LED_BLUE PIN_LED1
-#define LED_GREEN PIN_LED2
 #define LED_STATE_ON 0 // State when LED is lit  // LED灯亮时的状态
 #define PIN_BUZZER (0 + 6)
 /*