wifi/espat, rtl8720dn, wifinina, net: modify to use Adapter interface

Signed-off-by: deadprogram <ron@hybridgroup.com>

examples/espat/espconsole/main.go

@@ -113,7 +113,6 @@ func connectToESP() bool {
 func connectToAP() {
 	println("Connecting to wifi network '" + ssid + "'")
 
-	adaptor.SetWifiMode(espat.WifiModeClient)
 	if err := adaptor.ConnectToAccessPoint(ssid, pass, 10*time.Second); err != nil {
 		failMessage(err.Error())
 	}