application: remove LED since we will use the pin

application.c

@@ -459,12 +459,10 @@ void main(void)
 	// start main loop
 	bool action = false; // if an action has been performed don't go to sleep
 	button_flag = false; // reset button flag
-	led_on(); // switch LED to indicate booting completed
 	while (true) { // infinite loop
 		iwdg_reset(); // kick the dog
 		if (user_input_available) { // user input is available
 			action = true; // action has been performed
-			led_toggle(); // toggle LED
 			char c = user_input_get(); // store receive character
 			terminal_send(c); // send received character to terminal
 		}
@@ -473,7 +471,6 @@ void main(void)
 		}
 		if (second_flag) { // one second passed
 			second_flag = false; // clear flag
-			led_toggle(); // toggle LED to indicate if main function is stuck
 		}
 		if (action) { // go to sleep if nothing had to be done, else recheck for activity
 			action = false;