Drop the redundant cable success visualizer toggle

Hiding the cable pose command's success visualizer is not needed. All 32
franka_cable goldens reproduce unchanged without it, so the marker does not
disturb the capture once the table itself is visible.

Author: mmichelis

source/isaaclab_tasks/test/rendering_test_utils.py

@@ -2502,7 +2502,6 @@ def rendering_test_franka_cable(
 
     try:
         env = ManagerBasedRLEnv(env_cfg)
-        env.command_manager.get_term("cable_pose").success_visualizer.set_visibility(False)
 
         maybe_save_stage(test_name, physics_backend, renderer, data_types[0])