Remove special link class

This cleans up the code quite a bit, but also allows links in editable
content to be rendered with the default style.

app/views/admin/lightning/index.html.erb

@@ -36,7 +36,7 @@
             </td>
             <td>
               <% if user = @users.find{ |u| u[2] == account.login } %>
-                <%= link_to user[0], admin_user_path(user[0]), class: "ks-text-link" %>
+                <%= link_to user[0], admin_user_path(user[0]) %>
               <% end %>
             </td>
             <td><%= number_with_delimiter account.balance.to_i.to_s %></td>