Oktasdk-php patch is no longer needed

Problem/Motivation

In https://www.drupal.org/project/okta_api/issues/3398833 🐛 GuzzleHTTP constraint doesn't allow upgrade from Drupal 9 to 10. Fixed , the "dakkusingh/oktasdk" dependency was changed to use an updated fork. This resulted in a patch that this module includes, "Add a group option to the user creation #3", failing to apply. As it turns out, the patch was actually incorporated in the "dakkusingh/oktasdk" fork that is now being used, and so the patch is no longer necessary.

Proposed resolution

Remove the patch section from this module's composer.json. Since it is a composer.json change, a regular patch won't have an effect on this issue. I will follow up with a merge request shortly.