diff --git a/sql/mysql/upgrade/3.0.1.6/session_id.sql b/sql/mysql/upgrade/3.0.1.6/session_id.sql
deleted file mode 100644
index f3f8126..0000000
--- a/sql/mysql/upgrade/3.0.1.6/session_id.sql
+++ /dev/null
@@ -1,8 +0,0 @@
-SET FOREIGN_KEY_CHECKS=0;
-ALTER TABLE `document_transactions` ADD COLUMN `session_id` int(11) default NULL;
-ALTER TABLE `document_transactions` ADD INDEX `session_id` (`session_id`);
-ALTER TABLE `folder_transactions` ADD COLUMN `session_id` int(11) default NULL;
-ALTER TABLE `folder_transactions` ADD INDEX `session_id` (`session_id`);
-ALTER TABLE `user_history` ADD COLUMN `session_id` int(11) default NULL;
-ALTER TABLE `user_history` ADD INDEX `session_id` (`session_id`);
-SET FOREIGN_KEY_CHECKS=1;