Remove usb interface because no more required

Signed-off-by: fpr <[email protected]>

Author: fpr

cores/arduino/chip.h

@@ -34,9 +34,6 @@
 #include "timer.h"
 #include "twi.h"
 #include "stm32_eeprom.h"
-#ifdef USBCON
-#include "usb_interface.h"
-#endif //USBCON
 
 #include "ethernet.h"
 

cores/arduino/main.cpp

@@ -39,10 +39,6 @@ int main( void )
 {
 	initVariant();
 
-#if defined(USBCON)
-	usbd_interface_init();
-#endif
-
 	setup();
 
 	for (;;)