Remove orphan comment
diff --git a/gym/envs/mujoco/__init__.py b/gym/envs/mujoco/__init__.py
index c81f0dec3fe..fc4cc058be1 100644
--- a/gym/envs/mujoco/__init__.py
+++ b/gym/envs/mujoco/__init__.py
@@ -1,3 +1,5 @@
+from gym.envs.mujoco.mujoco_env import MujocoEnv  # isort:skip
+
 # ^^^^^ so that user gets the correct error
 # message if mujoco is not installed correctly
 from gym.envs.mujoco.ant import AntEnv
@@ -7,7 +9,6 @@
 from gym.envs.mujoco.humanoidstandup import HumanoidStandupEnv
 from gym.envs.mujoco.inverted_double_pendulum import InvertedDoublePendulumEnv
 from gym.envs.mujoco.inverted_pendulum import InvertedPendulumEnv
-from gym.envs.mujoco.mujoco_env import MujocoEnv
 from gym.envs.mujoco.pusher import PusherEnv
 from gym.envs.mujoco.reacher import ReacherEnv
 from gym.envs.mujoco.swimmer import SwimmerEnv

The comment used to be due to the line that is not there anymore, like:
```python
from gym.envs.mujoco.mujoco_env import MujocoEnv

# ^^^^^ so that user gets the correct error
# message if mujoco is not installed correctly
```

Now the comment is useless.