Merge pull request #363 from pennam/esp_arch

ESP: Remove redundant arch defines

Author: facchinm

src/AIoTC_Config.h

@@ -141,7 +141,7 @@
   #define HAS_LORA
 #endif
 
-#if defined(ARDUINO_ESP8266_ESP12) || defined(ARDUINO_ARCH_ESP32) || defined(ESP8266) || defined(ESP32)
+#if defined(ARDUINO_ARCH_ESP8266) || defined(ARDUINO_ARCH_ESP32)
   #define BOARD_ESP
   #define HAS_TCP
 #endif