staging:r8188eu: remove ieee80211_is_empty_essid()

ieee80211_is_empty_essid() is unused, remove it.
Signed-off-by: Ivan Safonov <insafonov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/core/rtw_ieee80211.c

@@ -955,23 +955,6 @@ void rtw_macaddr_cfg(u8 *mac_addr)
 	DBG_88E("rtw_macaddr_cfg MAC Address  = %pM\n", (mac_addr));
 }
 
-/* Baron adds to avoid FreeBSD warning */
-int ieee80211_is_empty_essid(const char *essid, int essid_len)
-{
-	/* Single white space is for Linksys APs */
-	if (essid_len == 1 && essid[0] == ' ')
-		return 1;
-
-	/* Otherwise, if the entire essid is 0, we assume it is hidden */
-	while (essid_len) {
-		essid_len--;
-		if (essid[essid_len] != '\0')
-			return 0;
-	}
-
-	return 1;
-}
-
 static int rtw_get_cipher_info(struct wlan_network *pnetwork)
 {
 	uint wpa_ielen;

drivers/staging/rtl8188eu/include/ieee80211.h

@@ -632,9 +632,6 @@ static inline int is_broadcast_mac_addr(const u8 *addr)
 #define IEEE_G	    (1<<2)
 #define IEEE_MODE_MASK    (IEEE_A|IEEE_B|IEEE_G)
 
-/* Baron move to ieee80211.c */
-int ieee80211_is_empty_essid(const char *essid, int essid_len);
-
 /* Action category code */
 enum rtw_ieee80211_category {
 	RTW_WLAN_CATEGORY_SPECTRUM_MGMT = 0,