undid the damage

panda/src/collide/collisionPolygon.cxx

@@ -887,7 +887,6 @@ test_intersection_from_parabola(const CollisionEntry &entry) const {
 
   new_entry->set_surface_normal(normal);
   new_entry->set_surface_point(plane_point);
-  new_entry->set_t(t);
 
   return new_entry;
 }