b43legacy: remove WDS code

The ability to reach this code was hidden behind
CONFIG_WIRELESS_WDS, which was just removed. Clean
up the driver accordingly.

Link: https://lore.kernel.org/r/20201109105103.daa66065cc71.Ie6280e1606fa9aa892b2a342a62aabd42e241f9c@changeidAcked-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

drivers/net/wireless/broadcom/b43legacy/main.c

@@ -3381,11 +3381,10 @@ static int b43legacy_op_add_interface(struct ieee80211_hw *hw,
 	unsigned long flags;
 	int err = -EOPNOTSUPP;
 
-	/* TODO: allow WDS/AP devices to coexist */
+	/* TODO: allow AP devices to coexist */
 
 	if (vif->type != NL80211_IFTYPE_AP &&
 	    vif->type != NL80211_IFTYPE_STATION &&
-	    vif->type != NL80211_IFTYPE_WDS &&
 	    vif->type != NL80211_IFTYPE_ADHOC)
 		return -EOPNOTSUPP;
 
@@ -3805,9 +3804,6 @@ static int b43legacy_wireless_init(struct ssb_device *dev)
 	hw->wiphy->interface_modes =
 		BIT(NL80211_IFTYPE_AP) |
 		BIT(NL80211_IFTYPE_STATION) |
-#ifdef CONFIG_WIRELESS_WDS
-		BIT(NL80211_IFTYPE_WDS) |
-#endif
 		BIT(NL80211_IFTYPE_ADHOC);
 	hw->queues = 1; /* FIXME: hardware has more queues */
 	hw->max_rates = 2;