Pointer 'urb' is being assigned but is never used hence it is
redundant and can be removed.
Cleans up clang warning:
warning: variable 'urb' set but not used [-Wunused-but-set-variable]
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
                unsigned long flags;
                struct snd_usb_packet_info *uninitialized_var(packet);
                struct snd_urb_ctx *ctx = NULL;
-               struct urb *urb;
                int err, i;
 
                spin_lock_irqsave(&ep->lock, flags);
                        return;
 
                list_del_init(&ctx->ready_list);
-               urb = ctx->urb;
 
                /* copy over the length information */
                for (i = 0; i < packet->packets; i++)