Remove editable parameter in render_map

The calls to `render_map` are confusing since there are so many
parameters. We can assume that the map is editable if we pass the remove
marker label.

app/components/budgets/map_component.html.erb

@@ -1,4 +1,4 @@
 <div class="map inline">
   <h2><%= t("budgets.index.map") %></h2>
-  <%= render_map(nil, "budgets", false, nil, coordinates) %>
+  <%= render_map(nil, "budgets", nil, coordinates) %>
 </div>