staging: rtl8723bs: remove rtw_is_wps_ie

Remove function rtw_is_wps_ie because it is not used.
Signed-off-by: Nam Cao <namcaov@gmail.com>
Link: https://lore.kernel.org/r/69f128559008c94e29eab511a92964810688288e.1662111799.git.namcaov@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723bs/core/rtw_ieee80211.c

@@ -634,23 +634,6 @@ void rtw_get_sec_ie(u8 *in_ie, uint in_len, u8 *rsn_ie, u16 *rsn_len, u8 *wpa_ie
 	}
 }
 
-u8 rtw_is_wps_ie(u8 *ie_ptr, uint *wps_ielen)
-{
-	u8 match = false;
-	u8 eid, wps_oui[4] = {0x0, 0x50, 0xf2, 0x04};
-
-	if (!ie_ptr)
-		return match;
-
-	eid = ie_ptr[0];
-
-	if ((eid == WLAN_EID_VENDOR_SPECIFIC) && (!memcmp(&ie_ptr[2], wps_oui, 4))) {
-		*wps_ielen = ie_ptr[1]+2;
-		match = true;
-	}
-	return match;
-}
-
 /**
  * rtw_get_wps_ie - Search WPS IE from a series of IEs
  * @in_ie: Address of IEs to search

drivers/staging/rtl8723bs/include/ieee80211.h

@@ -746,7 +746,6 @@ int rtw_parse_wpa2_ie(u8 *wpa_ie, int wpa_ie_len, int *group_cipher, int *pairwi
 
 void rtw_get_sec_ie(u8 *in_ie, uint in_len, u8 *rsn_ie, u16 *rsn_len, u8 *wpa_ie, u16 *wpa_len);
 
-u8 rtw_is_wps_ie(u8 *ie_ptr, uint *wps_ielen);
 u8 *rtw_get_wps_ie(u8 *in_ie, uint in_len, u8 *wps_ie, uint *wps_ielen);
 u8 *rtw_get_wps_attr(u8 *wps_ie, uint wps_ielen, u16 target_attr_id, u8 *buf_attr, u32 *len_attr);
 u8 *rtw_get_wps_attr_content(u8 *wps_ie, uint wps_ielen, u16 target_attr_id, u8 *buf_content, uint *len_content);