Remove unnecessary abstraction around rectangles

app/assets/javascripts/browse.js

@@ -33,7 +33,12 @@ $(document).ready(function () {
                               [params.maxlat, params.maxlon]);
 
     map.fitBounds(bbox);
-    addBoxToMap(bbox);
+
+    L.rectangle(bbox, {
+      weight: 2,
+      color: '#e90',
+      fillOpacity: 0
+    }).addTo(map);
 
     $("#loading").hide();
     $("#browse_map .geolink").show();

app/assets/javascripts/index.js

@@ -48,7 +48,11 @@ $(document).ready(function () {
       map.fitBounds(bbox);
 
       if (params.box) {
-        addBoxToMap(bbox);
+        L.rectangle(bbox, {
+          weight: 2,
+          color: '#e90',
+          fillOpacity: 0
+        }).addTo(map);
       }
     } else {
       map.setView([params.lat, params.lon], params.zoom);

app/assets/javascripts/map.js.erb

@@ -151,18 +151,6 @@ function addObjectToMap(object, options) {
   });
 }
 
-function addBoxToMap(bounds) {
-  var box = L.rectangle(bounds, {
-    weight: 2,
-    color: '#e90',
-    fillOpacity: 0
-  });
-
-  box.addTo(map);
-
-  return box;
-}
-
 function getMapBaseLayer() {
   for (var i = 0; i < layers.length; i++) {
     if (map.hasLayer(layers[i].layer)) {