all: Revert libusb-1.0 support

Listing of usb devices with libusb-1.0 is too slow and not usable for
flashing or cold-flashing Nokia N900.

Old libusb (0.1) does not have this problem and works perfectly.

Problem for libusb-1.0 was reported at least two times into libusb-devel
mailing list, but upstream developers are totally ignore it. One message is
in archive: https://sourceforge.net/p/libusb/mailman/message/34985373/

Because of that there is just one option: use tested and working libusb 0.1
library instead some experimental and non-working libusb-1.0.

src/disk.c

@@ -281,20 +281,14 @@ int disk_init(struct usb_device_info * dev) {
 	unsigned int devnum;
 	unsigned int busnum;
 
-	uint8_t usbdevnum;
-	uint8_t usbbusnum;
+	struct usb_device * device;
 
-	struct libusb_device * device;
-
-	device = libusb_get_device(dev->udev);
-	if ( ! device ) {
+	device = usb_device(dev->udev);
+	if ( ! device || ! device->bus ) {
 		ERROR_INFO("Cannot read usb devnum and busnum");
 		return -1;
 	}
 
-	usbbusnum = libusb_get_bus_number(device);
-	usbdevnum = libusb_get_device_address(device);
-
 	dir = opendir("/sys/dev/block/");
 	if ( ! dir ) {
 		ERROR_INFO("Cannot open '/sys/dev/block/' directory");
@@ -334,7 +328,7 @@ int disk_init(struct usb_device_info * dev) {
 
 		fclose(f);
 
-		if ( devnum != usbdevnum || usbbusnum != busnum )
+		if ( devnum != device->devnum || device->bus->location != busnum )
 			continue;
 
 		if ( sscanf(dirent->d_name, "%d:%d", &maj2, &min2) != 2 ) {