Update index.html

Author: ssameti3

src/index.html

@@ -17,7 +17,6 @@
   <script defer src="../bower_components/topojson/topojson.min.js"></script>
   <script defer src="../bower_components/underscore/underscore-min.js"></script>
   <script defer src="../bower_components/geostats/lib/geostats.js"></script>
-  <script defer type="text/javascript" src="https://stamen-maps.a.ssl.fastly.net/js/tile.stamen.js"></script>
   <script defer src="../vendor/leaflet/leaflet-src.js"></script>
   <script defer src="../bower_components/leaflet-fullscreen/dist/Leaflet.fullscreen.min.js"></script>
   <script defer src="../vendor/three.min.js"></script>