diff --git a/install/update_0901_0904.php b/install/update_0901_0904.php
deleted file mode 100644
index a874075402a..00000000000
--- a/install/update_0901_0904.php
+++ /dev/null
@@ -1,102 +0,0 @@
-<?php
-/*
- -------------------------------------------------------------------------
- GLPI - Gestionnaire Libre de Parc Informatique
- Copyright (C) 2015 Teclib'.
-
- http://glpi-project.org
-
- based on GLPI - Gestionnaire Libre de Parc Informatique
- Copyright (C) 2003-2014 by the INDEPNET Development Team.
-
- -------------------------------------------------------------------------
-
- LICENSE
-
- This file is part of GLPI.
-
- GLPI is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- GLPI is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GLPI. If not, see <http://www.gnu.org/licenses/>.
- --------------------------------------------------------------------------
- */
-
-/** @file
-* @brief
-*/
-
-/**
- * Update from 0.90.1 to 0.90.4
- *
- * @return bool for success (will die for most error)
-**/
-function update0901to0904() {
-   global $DB, $migration;
-
-   $updateresult     = true;
-   $ADDTODISPLAYPREF = array();
-
-   //TRANS: %s is the number of new version
-   $migration->displayTitle(sprintf(__('Update to %s'), '0.90.4'));
-   $migration->setVersion('0.90.4');
-
-
-   $backup_tables = false;
-   $newtables     = array();
-
-   foreach ($newtables as $new_table) {
-      // rename new tables if exists ?
-      if (TableExists($new_table)) {
-         $migration->dropTable("backup_$new_table");
-         $migration->displayWarning("$new_table table already exists. ".
-                                    "A backup have been done to backup_$new_table.");
-         $backup_tables = true;
-         $query         = $migration->renameTable("$new_table", "backup_$new_table");
-      }
-   }
-   if ($backup_tables) {
-      $migration->displayWarning("You can delete backup tables if you have no need of them.",
-                                 true);
-   }
-
-   // Add rights for licenses
-   $profileRight = new profileRight();
-   foreach ($DB->request('glpi_profiles') as $profile) {
-      if (!countElementsInTable("glpi_profilerights",
-                                "`profiles_id`='".$profile['id']."' AND `name`='license'")) {
-        $query = "SELECT `rights`
-                  FROM `glpi_profilerights`
-                  WHERE `profiles_id`='".$profile['id']."'
-                     AND `name`='software'";
-        $result = $DB->query($query);
-        $right = 0;
-        if ($DB->numrows($result) > 0) {
-           $right = $DB->result($result, 0, "rights");
-        }
-        $query = "INSERT INTO `glpi_profilerights`
-                             (`profiles_id`, `name`, `rights`)
-                      VALUES ('".$profile['id']."', 'license', '$right')";
-      }
-   }
-
-   $migration->addField('glpi_softwarelicenses', 'is_template', 'bool');
-   $migration->addField('glpi_softwarelicenses', 'template_name', 'string');
-   $migration->addKey('glpi_softwarelicenses', 'is_template');
-
-   $migration->addField('glpi_softwarelicenses', 'is_deleted', 'bool');
-   $migration->addKey('glpi_softwarelicenses', 'is_deleted');
-
-   // ************ Keep it at the end **************
-   $migration->executeMigration();
-
-   return $updateresult;
-}