How to remove a CARTO layer interactivity + GMs

<!DOCTYPE html>
<html>
  <head>
    <title>GMs and CARTO.js | Remove interactivity</title>
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
    <meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
    <link rel="shortcut icon" href="https://cartodb.com/assets/favicon.ico" />
    <style>
      html, body, #map {
        height: 100%;
        padding: 0;
        margin: 0;
      }
    </style>

<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&libraries=visualization"></script>

<script src="https://libs.cartocdn.com.s3.amazonaws.com/cartodb.js/v3/3.15/cartodb.uncompressed.js"></script>

function main() {

// Map center
        var myOptions = {
          zoom: 3,
          center: new google.maps.LatLng(40, 0),
          disableDefaultUI: true,
          mapTypeId: google.maps.MapTypeId.SATELLITE
        }
        // Render basemap
        map = new google.maps.Map(document.getElementById("map"), myOptions);

var urlLayer = "https://team.cartodb.com/u/ramirocartodb/api/v2/viz/d3b411a0-e521-11e5-bf3f-0e31c9be1b51/viz.json";

/* Add a layer to the map */
          console.log("Add Layer");
          cartodb.createLayer(map, urlLayer)
          .addTo(map)
    }
      window.onload = main;
    </script>
  </body>
</html>

Modified http://libs.cartocdn.com.s3.amazonaws.com/cartodb.js/v3/3.15/cartodb.uncompressed.js to a secure url

https://maps.googleapis.com/maps/api/js?v=3.exp&libraries=visualization

https://libs.cartocdn.com.s3.amazonaws.com/cartodb.js/v3/3.15/cartodb.uncompressed.js