[demo] deleted unnecessary comment

Author: LucaKro

demos/pycram_bullet_world_demo/demo.py

@@ -17,7 +17,6 @@
 extension = ObjectDescription.get_file_extension()
 
 world = BulletWorld(WorldMode.GUI)
-# viz = VizMarkerPublisher()
 
 robot = Object("pr2", Robot, f"pr2{extension}", pose=Pose([1, 2, 0]))
 apartment = Object("apartment", Apartment, f"apartment{extension}")