Settings---> Notifications---> Google Play services---> Block all (Never show notifications from this app) and make sure it's checked. Clear the notification and there ya go.
I also went into Developer options and unchecked the Automatic system updates option
Hope this is what you were...
Same here.. I went like 3 months with nothing... Then last week I got one, and yesterday.... So they still come, just not as frequent as when first installed.