I want to delete an actor class that no longer need.
However, the actor has already been placed around the level.
Can I just remove the Actor class?
should I use the deprecated specifier in the class?
Is there a special way to delete the actor class used in the level?
If you search in the World Outliner for the actor class name you can delete the results, then delete the class from your content folder.
If you have a replacement class, when deleting the class from your content browser you will be prompted to replace all instances of it with a new one.