ath9k_htc: remove dead code in error path of ath9k_htc_txcompletion_cb

This clause is conditioned on htc_hdr != NULL, but it will only be NULL
when that check is reached.

Coverity: CID 114318
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/ath/ath9k/htc_hst.c

@@ -351,10 +351,6 @@ void ath9k_htc_txcompletion_cb(struct htc_target *htc_handle,
 
 	return;
 ret:
-	/* HTC-generated packets are freed here. */
-	if (htc_hdr && htc_hdr->endpoint_id != ENDPOINT0)
-		dev_kfree_skb_any(skb);
-	else
 	kfree_skb(skb);
 }