staging: r8188eu: remove unused function rtw_remove_bcn_ie()

Function rtw_remove_bcn_ie() is not used anywhere, remove it.
Acked-by: Phillip Potter <phil@philpotter.co.uk>
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210819112200.32030-2-straube.linux@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/core/rtw_ap.c

@@ -139,44 +139,6 @@ static void update_BCNTIM(struct adapter *padapter)
 	set_tx_beacon_cmd(padapter);
 }
 
-void rtw_remove_bcn_ie(struct adapter *padapter, struct wlan_bssid_ex *pnetwork, u8 index)
-{
-	u8 *p, *dst_ie = NULL, *premainder_ie = NULL;
-	u8 *pbackup_remainder_ie = NULL;
-	uint offset, ielen, ie_offset, remainder_ielen = 0;
-	u8	*pie = pnetwork->IEs;
-
-	p = rtw_get_ie(pie + _FIXED_IE_LENGTH_, index, &ielen,
-		       pnetwork->IELength - _FIXED_IE_LENGTH_);
-	if (p && ielen > 0) {
-		ielen += 2;
-
-		premainder_ie = p + ielen;
-
-		ie_offset = (int)(p - pie);
-
-		remainder_ielen = pnetwork->IELength - ie_offset - ielen;
-
-		dst_ie = p;
-	}
-
-	if (remainder_ielen > 0) {
-		pbackup_remainder_ie = kmalloc(remainder_ielen, GFP_KERNEL);
-		if (pbackup_remainder_ie && premainder_ie)
-			memcpy(pbackup_remainder_ie, premainder_ie, remainder_ielen);
-	}
-
-	/* 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->IELength = offset + remainder_ielen;
-}
-
 static u8 chk_sta_is_alive(struct sta_info *psta)
 {
 	u8 ret = false;

drivers/staging/r8188eu/include/rtw_ap.h

@@ -16,8 +16,6 @@ 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_remove_bcn_ie(struct adapter *padapter,
-		       struct wlan_bssid_ex *pnetwork, u8 index);
 void update_beacon(struct adapter *padapter, u8 ie_id,
 		   u8 *oui, u8 tx);
 void add_RATid(struct adapter *padapter, struct sta_info *psta,