staging: rtl8188eu: remove code valid only for 5 GHz

Remove code valid only for 5 GHz, according to the TODO.

- find and remove remaining code valid only for 5 GHz. Most of the obvious
  ones have been removed, but things like channel > 14 still exist.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20191024155918.13399-1-straube.linux@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/core/rtw_ap.c

@@ -440,15 +440,9 @@ static void update_bmc_sta(struct adapter *padapter)
 				tx_ra_bitmap |= rtw_get_bit_value_from_ieee_value(psta->bssrateset[i] & 0x7f);
 		}
 
-		if (pcur_network->Configuration.DSConfig > 14) {
-			/* force to A mode. 5G doesn't support CCK rates */
-			network_type = WIRELESS_11A;
-			tx_ra_bitmap = 0x150; /*  6, 12, 24 Mbps */
-		} else {
-			/* force to b mode */
-			network_type = WIRELESS_11B;
-			tx_ra_bitmap = 0xf;
-		}
+		/* force to b mode */
+		network_type = WIRELESS_11B;
+		tx_ra_bitmap = 0xf;
 
 		raid = networktype_to_raid(network_type);
 		init_rate = get_highest_rate_idx(tx_ra_bitmap & 0x0fffffff) & 0x3f;

drivers/staging/rtl8188eu/os_dep/ioctl_linux.c

@@ -148,17 +148,10 @@ static char *translate_scan(struct adapter *padapter,
 		else
 			snprintf(iwe.u.name, IFNAMSIZ, "IEEE 802.11bg");
 	} else {
-		if (pnetwork->network.Configuration.DSConfig > 14) {
-			if (ht_cap)
-				snprintf(iwe.u.name, IFNAMSIZ, "IEEE 802.11an");
-			else
-				snprintf(iwe.u.name, IFNAMSIZ, "IEEE 802.11a");
-		} else {
-			if (ht_cap)
-				snprintf(iwe.u.name, IFNAMSIZ, "IEEE 802.11gn");
-			else
-				snprintf(iwe.u.name, IFNAMSIZ, "IEEE 802.11g");
-		}
+		if (ht_cap)
+			snprintf(iwe.u.name, IFNAMSIZ, "IEEE 802.11gn");
+		else
+			snprintf(iwe.u.name, IFNAMSIZ, "IEEE 802.11g");
 	}
 
 	start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_CHAR_LEN);
@@ -650,17 +643,10 @@ static int rtw_wx_get_name(struct net_device *dev,
 			else
 				snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11bg");
 		} else {
-			if (pcur_bss->Configuration.DSConfig > 14) {
-				if (ht_cap)
-					snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11an");
-				else
-					snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11a");
-			} else {
-				if (ht_cap)
-					snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11gn");
-				else
-					snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11g");
-			}
+			if (ht_cap)
+				snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11gn");
+			else
+				snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11g");
 		}
 	} else {
 		snprintf(wrqu->name, IFNAMSIZ, "unassociated");