Deleting dedicated ESP8266 example since it's functionality is covered within ArduinoIoTCloud_LED_switch

Author: aentinger

.travis.yml

@@ -108,7 +108,6 @@ script:
     if [ "$BOARD" == "esp8266:esp8266:huzzah" ]; then
       buildSketch \
         "ArduinoIoTCloud_LED_switch" \
-        "ArduinoIoTCloud_ESP8266" \
         "utility/WiFi_Cloud_Blink_with_security_credentials"
     fi
 notifications: