去掉甘特图中导出pdf功能

app/views/gantts/show.html.erb

@@ -294,10 +294,7 @@
 </tr>
 </table>
 
-<% other_formats_links do |f| %>
-  <%= f.link_to 'PDF', :url => params.merge(@gantt.params) %>
-  <%= f.link_to('PNG', :url => params.merge(@gantt.params)) if @gantt.respond_to?('to_image') %>
-<% end %>
+
 <% end # query.valid? %>
 
 <% content_for :sidebar do %>