usb: drop unused USBNetState.inpkt field

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

hw/usb/dev-network.c

diff --git a/hw/usb/dev-network.c b/hw/usb/dev-network.c
index 660d774..4c532b7 100644
--- a/hw/usb/dev-network.c
+++ b/hw/usb/dev-network.c
@@ -637,7 +637,6 @@
     unsigned int out_ptr;
     uint8_t out_buf[2048];
 
-    USBPacket *inpkt;
     unsigned int in_ptr, in_len;
     uint8_t in_buf[2048];