Staging: remove some pointless conditionals before kfree_skb()

Remove some pointless conditionals before kfree_skb().
Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/at76_usb/at76_usb.c

@@ -5370,7 +5370,6 @@ static void at76_delete_device(struct at76_priv *priv)
 
 	at76_dbg(DBG_PROC_ENTRY, "%s: unlinked urbs", __func__);
 
-	if (priv->rx_skb)
 	kfree_skb(priv->rx_skb);
 
 	at76_free_bss_list(priv);

drivers/staging/otus/wwrap.c

@@ -971,7 +971,6 @@ int zfLnxCencSendMsg(struct sock *netlink_sk, u_int8_t *msg, int len)
 out:
 	return ret;
 nlmsg_failure: /*NLMSG_PUT 失败，则撤销套接字缓存*/
-  	if(skb)
 	kfree_skb(skb);
 	goto out;