iwlegacy: 4965-rs: remove unnecessary null check for sta and lq_sta

both sta and lq_sta are guaranteed to be not null in the calling
function so we don't need to check them here.

Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
diff --git a/drivers/net/wireless/iwlegacy/4965-rs.c b/drivers/net/wireless/iwlegacy/4965-rs.c
index b0946a1..2ec808e 100644
--- a/drivers/net/wireless/iwlegacy/4965-rs.c
+++ b/drivers/net/wireless/iwlegacy/4965-rs.c
@@ -1793,9 +1793,6 @@
 	    (info->flags & IEEE80211_TX_CTL_NO_ACK))
 		return;
 
-	if (!sta || !lq_sta)
-		return;
-
 	lq_sta->supp_rates = sta->supp_rates[lq_sta->band];
 
 	tid = il4965_rs_tl_add_packet(lq_sta, hdr);