Changes to support MKR 1010 and Nano 33 IOT

Added include guards
Removed not needed code

src/wifi/AdafruitIO_MKR1010.h

@@ -12,6 +12,8 @@
  * All text above must be included in any redistribution.
  */
 
+#ifndef ADAFRUITIO_MKR1010_H
+#define ADAFRUITIO_MKR1010_H
 
 #include "AdafruitIO.h"
 #include "Adafruit_MQTT.h"
@@ -78,4 +80,4 @@ protected:
   WiFiSSLClient *_client;
 };
 
-
+#endif ADAFRUITIO_MKR1010_H

src/wifi/AdafruitIO_WINC1500.h

@@ -130,8 +130,7 @@ protected:
       _status = AIO_SSID_INVALID;
     } else {
       _disconnect();
-      // Comment out line below for MKR1010
-      //WiFi.setPins(_winc_cs, _winc_irq, _winc_rst, _winc_en); //
+      WiFi.setPins(_winc_cs, _winc_irq, _winc_rst, _winc_en); //
 
       // no shield? bail
       if (WiFi.status() == WL_NO_SHIELD) {