wifi: ath5k: fix repeated words in comments

Delete the redundant word 'don't' and 'but'.
Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220708154929.19199-1-yuanjilin@cdjrlc.com

drivers/net/wireless/ath/ath5k/base.c

@@ -1982,7 +1982,7 @@ ath5k_beacon_send(struct ath5k_hw *ah)
 
 	/*
 	 * Check if the previous beacon has gone out.  If
-	 * not, don't don't try to post another: skip this
+	 * not, don't try to post another: skip this
 	 * period and wait for the next.  Missed beacons
 	 * indicate a problem and should not occur.  If we
 	 * miss too many consecutive beacons reset the device.

drivers/net/wireless/ath/ath5k/mac80211-ops.c

@@ -410,7 +410,7 @@ ath5k_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
 	/* FIF_CONTROL doc says we should only pass on control frames for this
 	 * station. This needs testing. I believe right now this
 	 * enables *all* control frames, which is OK.. but
-	 * but we should see if we can improve on granularity */
+	 * we should see if we can improve on granularity */
 	if (*new_flags & FIF_CONTROL)
 		rfilt |= AR5K_RX_FILTER_CONTROL;