Staging: keucr: fix compiler warning

Now that we aren't using the rc_lock variable, delete it to keep gcc
happy and not complaining about it.

Cc: Al Cho <acho@novell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/keucr/transport.c

@@ -760,7 +760,7 @@ int usb_stor_Bulk_reset(struct us_data *us)
 //----- usb_stor_port_reset() ---------------------
 int usb_stor_port_reset(struct us_data *us)
 {
-	int result, rc_lock;
+	int result;
 
 	//printk("transport --- usb_stor_port_reset\n");
 	result = usb_lock_device_for_reset(us->pusb_dev, us->pusb_intf);