Disable point-of-interest information window using Google Maps API v3

UPDATE Google Maps JavaScript API V3

You can set clickableIcons to false in MapOptions. This will keep the POI icons but disable the infowindows just as you want.

function initialize() {
    var myMapOptions = { clickableIcons: false }
}

Further details here…

https://developers.google.com/maps/documentation/javascript/3.exp/reference#MapOptions