config: remove out-of-dated migrations routes

Author: kenjis

system/Config/Routes.php

@@ -19,10 +19,5 @@
  * already loaded up and ready for us to use.
  */
 
-// Migrations
-$routes->cli('migrations/(:segment)/(:segment)', '\CodeIgniter\Commands\MigrationsCommand::$1/$2');
-$routes->cli('migrations/(:segment)', '\CodeIgniter\Commands\MigrationsCommand::$1');
-$routes->cli('migrations', '\CodeIgniter\Commands\MigrationsCommand::index');
-
 // CLI Catchall - uses a _remap to call Commands
 $routes->cli('ci(:any)', '\CodeIgniter\CLI\CommandRunner::index/$1');