Try to fix type error

app.py

@@ -50,9 +50,6 @@ if __name__ == "__main__":
             gr.Warning(
                 "We're currently in the process of adding support for Mujoco environments, so the application may encounter crashes during this phase. We encourage contributors to join us in the repository https://github.com/riiswa/kanrl to assist in the development and support of other environments. Your contributions are invaluable in ensuring a robust and comprehensive framework."
             )
-            torch.set_default_dtype(torch.float64)
-        else:
-            torch.set_default_dtype(torch.float32)
         agent = "ppo"
         if env_name == "Swimmer-v3" or env_name == "Walker2d-v3":
             agent ="trpo"