Removing deck.gl as example_2.py works fine without it

Author: Herugrim

flask_googlemaps/templates/googlemaps/gmapjs.html

@@ -12,11 +12,6 @@
         <script src="//cdnjs.cloudflare.com/ajax/libs/js-marker-clusterer/1.0.0/markerclusterer_compiled.js" type="text/javascript"></script>
 {%  endif %}
 
-
-{% if gmap.layer %}
-        <script src="https://unpkg.com/deck.gl@^7.0.0/dist.min.js"></script>
-{%  endif %}
-
 <style type="text/css">
       #{{gmap.identifier}} { {{gmap.style}} }
 </style>