staging: rtl8188eu: remove unused rtw_add_bcn_ie()

The function rtw_add_bcn_ie() is never used, so remove it.
Discovered by cppcheck.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/core/rtw_ap.c

@@ -145,72 +145,6 @@ static void update_BCNTIM(struct adapter *padapter)
 	set_tx_beacon_cmd(padapter);
 }
 
-void rtw_add_bcn_ie(struct adapter *padapter, struct wlan_bssid_ex *pnetwork,
-		    u8 index, u8 *data, u8 len)
-{
-	struct ndis_802_11_var_ie *pIE;
-	u8 bmatch = false;
-	u8 *pie = pnetwork->ies;
-	u8 *p = NULL, *dst_ie = NULL, *premainder_ie = NULL;
-	u8 *pbackup_remainder_ie = NULL;
-	u32 i, offset, ielen = 0, ie_offset, remainder_ielen = 0;
-
-	for (i = sizeof(struct ndis_802_11_fixed_ie); i < pnetwork->ie_length;) {
-		pIE = (struct ndis_802_11_var_ie *)(pnetwork->ies + i);
-
-		if (pIE->ElementID > index) {
-			break;
-		/*  already exist the same IE */
-		} else if (pIE->ElementID == index) {
-			p = (u8 *)pIE;
-			ielen = pIE->Length;
-			bmatch = true;
-			break;
-		}
-		p = (u8 *)pIE;
-		ielen = pIE->Length;
-		i += (pIE->Length + 2);
-	}
-
-	if (p && ielen > 0) {
-		ielen += 2;
-
-		premainder_ie = p + ielen;
-
-		ie_offset = (int)(p - pie);
-
-		remainder_ielen = pnetwork->ie_length - ie_offset - ielen;
-
-		if (bmatch)
-			dst_ie = p;
-		else
-			dst_ie = p + ielen;
-	}
-
-	if (remainder_ielen > 0) {
-		pbackup_remainder_ie = rtw_malloc(remainder_ielen);
-		if (pbackup_remainder_ie && premainder_ie)
-			memcpy(pbackup_remainder_ie, premainder_ie,
-			       remainder_ielen);
-	}
-
-	*dst_ie++ = index;
-	*dst_ie++ = len;
-
-	memcpy(dst_ie, data, len);
-	dst_ie += len;
-
-	/* copy remainder IE */
-	if (pbackup_remainder_ie) {
-		memcpy(dst_ie, pbackup_remainder_ie, remainder_ielen);
-
-		kfree(pbackup_remainder_ie);
-	}
-
-	offset =  (uint)(dst_ie - pie);
-	pnetwork->ie_length = offset + remainder_ielen;
-}
-
 void rtw_remove_bcn_ie(struct adapter *padapter, struct wlan_bssid_ex *pnetwork,
 		       u8 index)
 {

drivers/staging/rtl8188eu/include/rtw_ap.h

@@ -19,8 +19,6 @@ void rtw_indicate_sta_disassoc_event(struct adapter *padapter,
 				     struct sta_info *psta);
 void init_mlme_ap_info(struct adapter *padapter);
 void free_mlme_ap_info(struct adapter *padapter);
-void rtw_add_bcn_ie(struct adapter *padapter, struct wlan_bssid_ex *pnetwork,
-		    u8 index, u8 *data, u8 len);
 void rtw_remove_bcn_ie(struct adapter *padapter,
 		       struct wlan_bssid_ex *pnetwork, u8 index);
 void update_beacon(struct adapter *padapter, u8 ie_id,