Use the items in the Delete menu to remove objects, animation, and other information from the scene.
Delete the picked objects
or
Delete all objects of a specific type in the scene
Use the other items in the Delete menu to quickly delete all objects of a specific type:
These tools delete active and inactive, visible and invisible objects.
Delete Locators has options that let you protect invisible locators or locators on reference layers.
Delete a selection handle
Delete all selection handles