Also remove alias for IbmDb2Adapter from legacy package

Signed-off-by: Alex Denvir <coldfff@gmail.com>

Author: alexdenvir

config/module.config.php

@@ -84,7 +84,6 @@
         ],
         'factories' => [
             Adapter\PdoAdapter::class    => Factory\PdoAdapterFactory::class,
-            Adapter\IbmDb2Adapter::class => Factory\IbmDb2AdapterFactory::class,
             Adapter\MongoAdapter::class  => Factory\MongoAdapterFactory::class,
             Provider\UserId\AuthenticationService::class => Provider\UserId\AuthenticationServiceFactory::class,
             'Laminas\ApiTools\OAuth2\Service\OAuth2Server'  => Factory\OAuth2ServerFactory::class