removed small image support

app/helpers/posts_helper.rb

@@ -2,15 +2,11 @@ module PostsHelper
   def resize_image_links(post, user)
     links = []
 
-    if post.has_medium?
-      links << link_to("M", post.medium_file_url, :id => "medium-file-link")
-    end
-    
     if post.has_large?
       links << link_to("L", post.large_file_url, :id => "large-file-link")
     end
     
-    if post.has_medium? || post.has_large?
+    if post.has_large?
       links << link_to("O", post.file_url, :id => "original-file-link")
     end