Index: db/migrate/004_add_birthday_and_visited_at_columns.rb
===================================================================
--- db/migrate/004_add_birthday_and_visited_at_columns.rb	(revision 36)
+++ db/migrate/004_add_birthday_and_visited_at_columns.rb	(working copy)
@@ -1,11 +0,0 @@
-class AddBirthdayAndVisitedAtColumns < ActiveRecord::Migration
-  def self.up
-    add_column :users, :birthday, :datetime
-    add_column :users, :visited_at, :datetime
-  end
-
-  def self.down
-    remove_column :users, :visited_at
-    remove_column :users, :birthday
-  end
-end