Fix noisy tracebacks when not in Korman mode

Blender used to not specify COMPAT_ENGINES on the physics panels. It
does now, and the new poll methods are incompatible with ours. This
results in lots of noisy errors being raised when in Blender Render mode
with the Korman addon active.

korman/render.py

@@ -65,24 +65,3 @@ del properties_render
 from bl_ui import properties_texture
 _whitelist_all(properties_texture)
 del properties_texture
-
-@classmethod
-def _new_poll(cls, context):
-    """Nifty replacement for naughty built-in Blender poll()s"""
-    if context.scene.render.engine == "PLASMA_GAME":
-        return False
-    else:
-        # Dear god you better save the old poll...
-        return cls._old_poll(cls, context)
-
-
-def _swap_poll(cls):
-    cls._old_poll = cls.poll
-    cls.poll = _new_poll
-
-# This is where we claim the physics context for our own nefarious purposes...
-# Hmm... Physics panels don't respect the supported engine thing.
-#        Metaprogramming to the rescue!
-from bl_ui import properties_physics_common
-_swap_poll(properties_physics_common.PhysicButtonsPanel)
-del properties_physics_common