Fix comment in LfsObjectsProject

Now that Design Management has moved to core the feature is no longer
EE-specific.

https://gitlab.com/gitlab-org/gitlab/-/issues/212566

app/models/lfs_objects_project.rb

@@ -15,7 +15,7 @@ class LfsObjectsProject < ApplicationRecord
   enum repository_type: {
     project: 0,
     wiki: 1,
-    design: 2 ## EE-specific
+    design: 2
   }
 
   scope :project_id_in, ->(ids) { where(project_id: ids) }