MAGETWO-31979: [Remove TODOs] Authorization

 - removed TODOs from install script

Author: Cari Spruiell

app/code/Magento/Authorization/sql/authorization_setup/install-2.0.0.php

@@ -8,16 +8,7 @@
 
 $installer->startSetup();
 
-if ($installer->getConnection()->isTableExists($installer->getTable('admin_role'))) {
-    /**
-     * Rename existing 'admin_role' table into 'authorization_role' (to avoid forcing Magento re-installation)
-     * TODO: This conditional logic can be removed some time after pull request is delivered to the mainline
-     */
-    $installer->getConnection()->renameTable(
-        $installer->getTable('admin_role'),
-        $installer->getTable('authorization_role')
-    );
-} elseif (!$installer->getConnection()->isTableExists($installer->getTable('authorization_role'))) {
+if (!$installer->getConnection()->isTableExists($installer->getTable('authorization_role'))) {
     /**
      * Create table 'authorization_role'
      */
@@ -83,16 +74,7 @@
     $installer->getConnection()->createTable($table);
 }
 
-if ($installer->getConnection()->isTableExists($installer->getTable('admin_rule'))) {
-    /**
-     * Rename existing 'admin_rule' table into 'authorization_rule' (to avoid forcing Magento re-installation)
-     * TODO: This conditional logic can be removed some time after pull request is delivered to the mainline
-     */
-    $installer->getConnection()->renameTable(
-        $installer->getTable('admin_rule'),
-        $installer->getTable('authorization_rule')
-    );
-} elseif (!$installer->getConnection()->isTableExists($installer->getTable('authorization_rule'))) {
+if (!$installer->getConnection()->isTableExists($installer->getTable('authorization_rule'))) {
     /**
      * Create table 'authorization_rule'
      */