diff --git a/db/migrate/20140617193351_add_and_remove_indexes_on_topic_links.rb b/db/migrate/20140617193351_add_and_remove_indexes_on_topic_links.rb
deleted file mode 100644
index 1ddbf6e8f8..0000000000
--- a/db/migrate/20140617193351_add_and_remove_indexes_on_topic_links.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-class AddAndRemoveIndexesOnTopicLinks < ActiveRecord::Migration
-  def up
-    # Index (topic_id) is a subset of (topic_id, post_id, url)
-    remove_index :topic_links, :topic_id
-
-    add_index :topic_links, :post_id
-  end
-
-  def down
-    remove_index :topic_links, :post_id
-    add_index :topic_links, :topic_id
-  end
-end