remove redundant params in nav links

app/models/tag.rb

@@ -554,7 +554,7 @@ class Tag < ActiveRecord::Base
         q = q.reorder("name")
 
       else
-        q = q.reorder("post_count desc")
+        q = q.reorder("id desc")
       end
 
       q

app/views/layouts/_main_links.html.erb

@@ -7,8 +7,8 @@
   <%= nav_link_to("Posts", posts_path) %>
   <%= nav_link_to("Comments", comments_path(:group_by => "post")) %>
   <%= nav_link_to("Notes", notes_path(:group_by => "post")) %>
-  <%= nav_link_to("Artists", artists_path(:search => {:order => "date"})) %>
-  <%= nav_link_to("Tags", tags_path(:search => {:order => "date"})) %>
+  <%= nav_link_to("Artists", artists_path) %>
+  <%= nav_link_to("Tags", tags_path) %>
   <% if CurrentUser.is_moderator? %>
     <%= nav_link_to("Aliases", tag_aliases_path) %>
     <%= nav_link_to("Implications", tag_implications_path) %>