del loramac unused macro

lorawan-ed-stack/Mac/LoRaMac.c

@@ -54,10 +54,6 @@
 
 #ifdef LORAWAN_ED_STACK_USING_ON_RTOS_RT_THREAD
 
-#define EV_LORAMAC_PROCESS_NOTIFY       0x0001
-#define EV_LORAMAC_PROCESS_TXDONE       0x0002
-#define EV_LORAMAC_PROCESS_RXDONE       0x0001
-#define EV_LORAMAC_PROCESS_NOTIFY       0x0001
 #define EV_LORAMAC_PROCESS_NOTIFY       0x0001
 
 static struct rt_event loramac_event;