remove builtin streetViewControl from google map

public/static/js/map_editor.js

@@ -513,10 +513,6 @@
                     zoomControlOptions: {
                         position: google.maps.ControlPosition.LEFT_BOTTOM
                     },
-                    streetViewControl: true,
-                    streetViewControlOptions: {
-                        position: google.maps.ControlPosition.LEFT_BOTTOM
-                    },
                     draggableCursor: 'crosshair'
                 });