Feature 3932 google nodes

Fixed the issue brought up in Feature 3932 which is to remove the default google nodes. Has been tested on multiple computers and it has been proven to work. Changed poi to all in the style type, which removed every node available. 
This certainly gets rid of extraneous map decoration, but I think it also gets rid of some potentially useful things too.

[
  {
    "featureType": "administrative",
    "elementType": "labels",
    "stylers": [
      { "visibility": "off" }
    ]
  },{
    "featureType": "landscape",
    "elementType": "labels",
    "stylers": [
      { "visibility": "off" }
    ]
  },{
    "featureType": "poi",
    "elementType": "labels",
    "stylers": [
      { "visibility": "off" }
    ]
  }
]

I recommend using this configuration as it lets us keep road labels and labels for bodies of water, which could be useful.