Revert "[wifi] Check AP mode using GSupplicant and GSupplicantInterface. JB#42927"

This reverts commit 801d3092. Breaks
tethering on some devices. Better to fix differently.

connman/plugins/sailfish_wifi.c

@@ -3804,25 +3804,12 @@ static int wifi_plugin_set_tethering(struct wifi_plugin *plugin,
 
 		for (l = plugin->devices; l && !ap_dev; l = l->next) {
 			struct wifi_device *dev = l->data;
-
-			/*
-			 * Check if either GSupplicantInterface or GSupplicant
-			 * structure has the AP capability.
-			 */
 			GSupplicantInterface* iface = dev->iface;
-			GSupplicant *supplicant = dev->supplicant;
 
 			if (iface && iface->valid && (iface->caps.modes &
 					GSUPPLICANT_INTERFACE_CAPS_MODES_AP)) {
 				ap_dev = dev;
 			}
-
-			if (supplicant && supplicant->valid &&
-						(dev->supplicant->caps &
-						GSUPPLICANT_CAPS_AP)) {
-				ap_dev = dev;
-			}
-
 		}
 
 		if (!ap_dev) {