Removing section from auth

Author: pabel-rh

modules/authentication/snip-enable-user-authentication-with-gitlab-common-first-steps.adoc

@@ -39,17 +39,6 @@ Enter the GitLab host domain: _`<gitlab_host_domain>`_.
 `GITLAB_PARENT_ORG`::
 Enter your GitLab organization name, such as `_<your_gitlab_organization_name>_`.
 
-. {integrating-with-github-book-link}##importing-multiple-repositories-from-gitlab[Configure the GitLab integration].
-
-. Enable the GitLab catalog provider plugin in your `dynamic-plugins.yaml` file to import GitLab users and groups to the {product-short} software catalog.
-+
-[source,yaml]
-----
-plugins:
-  - package: './dynamic-plugins/dist/backstage-plugin-catalog-backend-module-gitlab-org-dynamic
-    disabled: false
-----
-
 . Enable provisioning for GitLab users and groups to the {product-short} software catalog by adding the provider section to your {product-very-short} `{my-app-config-file}` file:
 +
 [source,yaml,subs="+quotes,+attributes"]