wext: remove a/b/g/n from SIOCGIWNAME

Since a/b/g/n no longer exist as spec amendements and VHT (ex 802.11ac)
wasn't handled at all, it's better to just remove the amendment strings
to avoid confusion.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

net/wireless/wext-compat.c

@@ -25,42 +25,7 @@ int cfg80211_wext_giwname(struct net_device *dev,
 			  struct iw_request_info *info,
 			  char *name, char *extra)
 {
-	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	struct ieee80211_supported_band *sband;
-	bool is_ht = false, is_a = false, is_b = false, is_g = false;
-
-	if (!wdev)
-		return -EOPNOTSUPP;
-
-	sband = wdev->wiphy->bands[NL80211_BAND_5GHZ];
-	if (sband) {
-		is_a = true;
-		is_ht |= sband->ht_cap.ht_supported;
-	}
-
-	sband = wdev->wiphy->bands[NL80211_BAND_2GHZ];
-	if (sband) {
-		int i;
-		/* Check for mandatory rates */
-		for (i = 0; i < sband->n_bitrates; i++) {
-			if (sband->bitrates[i].bitrate == 10)
-				is_b = true;
-			if (sband->bitrates[i].bitrate == 60)
-				is_g = true;
-		}
-		is_ht |= sband->ht_cap.ht_supported;
-	}
-
 	strcpy(name, "IEEE 802.11");
-	if (is_a)
-		strcat(name, "a");
-	if (is_b)
-		strcat(name, "b");
-	if (is_g)
-		strcat(name, "g");
-	if (is_ht)
-		strcat(name, "n");
-
 	return 0;
 }
 EXPORT_WEXT_HANDLER(cfg80211_wext_giwname);