Fix Windows HID backend missing byte

When the report id is zero, we should indeed skip the first byte of
transfer_priv->hid_buffer, since it is not part of the actual report.
But the report size should not change.

Thanks to Jonas Malaco who has done the investigation in this issue.
Reference: Jonas Malaco's comments
https://github.com/libusb/libusb/issues/902#issuecomment-810726897

Fixes #902
Fixes #977
Closes #986

libusb/os/windows_winusb.c

diff --git a/libusb/os/windows_winusb.c b/libusb/os/windows_winusb.c
index 299de16..df40773 100644
--- a/libusb/os/windows_winusb.c
+++ b/libusb/os/windows_winusb.c
@@ -4205,8 +4205,6 @@
 				}
 
 				if (transfer_priv->hid_buffer[0] == 0) {
-					// Discard the 1 byte report ID prefix
-					length--;
 					memcpy(transfer_priv->hid_dest, transfer_priv->hid_buffer + 1, length);
 				} else {
 					memcpy(transfer_priv->hid_dest, transfer_priv->hid_buffer, length);

libusb/version_nano.h

diff --git a/libusb/version_nano.h b/libusb/version_nano.h
index 1a8e712..36ca1a0 100644
--- a/libusb/version_nano.h
+++ b/libusb/version_nano.h
@@ -1 +1 @@
-#define LIBUSB_NANO 11650
+#define LIBUSB_NANO 11651