Remove the ugly orange selector on companion page

XamarinForms/Xamarin.Duo.Forms.Samples.Android/Resources/values/styles.xml

@@ -22,6 +22,8 @@
     <item name="windowActionModeOverlay">true</item>
 
     <item name="android:datePickerDialogTheme">@style/AppCompatDialogStyle</item>
+
+		<item name="android:colorActivatedHighlight">@android:color/transparent</item>
   </style>
 
   <style name="AppCompatDialogStyle" parent="Theme.AppCompat.Light.Dialog">