libusb: remove the timeouts in hid_write()

The libusb/hid.c:hid_write() has timeouts in its calls to
libusb_interrupt_transfer and libusb_control_transfer().  This timeout
can sometimes be tripped (e.g., if the underlying hardware is slow),
and no sensible error code is returned -- you just get a -1.  Hence,
the caller can't know that it could just try again because the only
error that occurred was a timeout (or that the message may have
actually gotten through).

Additionally, the other hid.c:hid_write() implementations -- linux,
mac, and windows -- are all blocking and do not timeout.  This makes
the behavior of the libusb hid_write() different than the others,
which seems weird.

This commit simply sets the libusb timeouts to 0 (i.e., infinite) to
make the libusb hid_write() behave like the others.

libusb/hid.c

@@ -1021,7 +1021,7 @@ int HID_API_EXPORT hid_write(hid_device *dev, const unsigned char *data, size_t
 			(2/*HID output*/ << 8) | report_number,
 			dev->interface,
 			(unsigned char *)data, length,
-			1000/*timeout millis*/);
+			0/*timeout millis*/);
 
 		if (res < 0)
 			return -1;
@@ -1038,7 +1038,7 @@ int HID_API_EXPORT hid_write(hid_device *dev, const unsigned char *data, size_t
 			dev->output_endpoint,
 			(unsigned char*)data,
 			length,
-			&actual_length, 1000);
+			&actual_length, 0);
 
 		if (res < 0)
 			return -1;