wireless: remove NETWORK_EMPTY_ESSID flag

It is unnecessary and of questionable value.  Also remove
is_empty_ssid, as it is also unnecessary.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/ieee80211/ieee80211_wx.c b/net/ieee80211/ieee80211_wx.c
index 3b031c2..3025140 100644
--- a/net/ieee80211/ieee80211_wx.c
+++ b/net/ieee80211/ieee80211_wx.c
@@ -65,15 +65,9 @@
 	/* Add the ESSID */
 	iwe.cmd = SIOCGIWESSID;
 	iwe.u.data.flags = 1;
-	if (network->flags & NETWORK_EMPTY_ESSID) {
-		iwe.u.data.length = sizeof("<hidden>");
-		start = iwe_stream_add_point(info, start, stop,
-					     &iwe, "<hidden>");
-	} else {
-		iwe.u.data.length = min(network->ssid_len, (u8) 32);
-		start = iwe_stream_add_point(info, start, stop,
-					     &iwe, network->ssid);
-	}
+	iwe.u.data.length = min(network->ssid_len, (u8) 32);
+	start = iwe_stream_add_point(info, start, stop,
+				     &iwe, network->ssid);
 
 	/* Add the protocol name */
 	iwe.cmd = SIOCGIWNAME;