Fully remove nunchuk decryption code: verified with real nunchuk.

src/nunchuk.c

@@ -61,10 +61,7 @@ int nunchuk_handshake(struct wiimote_t* wm, struct nunchuk_t* nc, byte* data, un
 	nc->accel_calib.st_alpha = wm->accel_calib.st_alpha;
 
 	/* decrypt data */
-/*
-	for (i = 0; i < len; ++i)
-		data[i] = (data[i] ^ 0x17) + 0x17;
-*/
+
 	if (data[offset] == 0xFF) {
 		/*
 		 *	Sometimes the data returned here is not correct.
@@ -139,11 +136,6 @@ void nunchuk_disconnected(struct nunchuk_t* nc) {
 void nunchuk_event(struct nunchuk_t* nc, byte* msg) {
 	int i;
 
-	/* decrypt data */
-/*
-	for (i = 0; i < 6; ++i)
-		msg[i] = (msg[i] ^ 0x17) + 0x17;
-*/
 	/* get button states */
 	nunchuk_pressed_buttons(nc, msg[5]);