Merge branch 'docs-object-storage-introduced-text' into 'master'

Remove unneeded bullet point

See merge request gitlab-org/gitlab!18720

doc/administration/geo/replication/object_storage.md

@@ -14,7 +14,7 @@ To have:
 
 ## Enabling GitLab managed object storage replication
 
-> - [Introduced](https://gitlab.com/gitlab-org/gitlab/issues/10586) in GitLab 12.4.
+> [Introduced](https://gitlab.com/gitlab-org/gitlab/issues/10586) in GitLab 12.4.
 
 CAUTION: **Caution:**
 This is a [**beta** feature](https://about.gitlab.com/handbook/product/#beta) and is not ready yet for production use at any scale.