remove error since now we can handle unsecure networks

[hugomontero]

This PR will allow open network connection.

I did a quick test with the code below and worked with my p2 maybe I'm missing something else here.

const payload = {
	ssid: networkData.ssid,
	bssid: null,
	security: 0
};
return particleDevice._sendAndHandleProtobufRequest('wifi.JoinNewNetworkRequest', payload, { timeout: WIFI_TIMEOUT_CONFIGURATION });