staging: rtl8723bs: remove some 5 GHz code

Chips that use this driver are 2.4 GHz only. Remove some code that is
executed only for 5 GHz (channel > 14) . This addresses the following
TODO item:

- find and remove any code for other chips that is left over

Signed-off-by: Michael Straube <[e-mail]>
Reviewed-by: Hans de Goede <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/rtl8723bs/core/rtw_ap.c

···
 	if (p && ie_len) {
 		pht_info = (struct HT_info_element *)(p + 2);
 
-		if (cur_channel > 14) {
-			if ((pregpriv->bw_mode & 0xf0) > 0)
-				cbw40_enable = 1;
-		} else {
-			if ((pregpriv->bw_mode & 0x0f) > 0)
-				cbw40_enable = 1;
-		}
+		if ((pregpriv->bw_mode & 0x0f) > 0)
+			cbw40_enable = 1;
 
 		if ((cbw40_enable) &&	 (pht_info->infos[0] & BIT(2))) {
 			/* switch to the 40M Hz mode */

drivers/staging/rtl8723bs/core/rtw_mlme.c

···
 	}
 
 	/* to disable 40M Hz support while gd_bw_40MHz_en = 0 */
-	if (channel > 14) {
-		if ((pregistrypriv->bw_mode & 0xf0) > 0)
-			cbw40_enable = 1;
-	} else {
-		if ((pregistrypriv->bw_mode & 0x0f) > 0)
-			cbw40_enable = 1;
-	}
+	if ((pregistrypriv->bw_mode & 0x0f) > 0)
+		cbw40_enable = 1;
 
 	if ((cbw40_enable == 1) && (operation_bw == CHANNEL_WIDTH_40)) {
 		ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH);
···
 		/* todo: */
 	}
 
-	if (channel > 14) {
-		if ((pregistrypriv->bw_mode & 0xf0) > 0)
-			cbw40_enable = 1;
-	} else {
-		if ((pregistrypriv->bw_mode & 0x0f) > 0)
-			cbw40_enable = 1;
-	}
+	if ((pregistrypriv->bw_mode & 0x0f) > 0)
+		cbw40_enable = 1;
 
 	/* update cur_bwmode & cur_ch_offset */
 	if ((cbw40_enable) &&

drivers/staging/rtl8723bs/core/rtw_wlan_util.c

···
 
 	pHT_info = (struct HT_info_element *)pIE->data;
 
-	if (pmlmeext->cur_channel > 14) {
-		if ((pregistrypriv->bw_mode & 0xf0) > 0)
-			cbw40_enable = 1;
-	} else {
-		if ((pregistrypriv->bw_mode & 0x0f) > 0)
-			cbw40_enable = 1;
-	}
+	if ((pregistrypriv->bw_mode & 0x0f) > 0)
+		cbw40_enable = 1;
 
 	if ((pHT_info->infos[0] & BIT(2)) && cbw40_enable) {
 		new_bwmode = CHANNEL_WIDTH_40;