Fix dependency error: stablebaseline3

kingjuno · kingjuno · commit 448cc6f1189c · 2023-12-07T16:25:03.000+05:30
diff --git a/openrl/envs/common/build_envs.py b/openrl/envs/common/build_envs.py
@@ -6,7 +6,6 @@
 from gymnasium import Env
 
 from openrl.envs.wrappers.base_wrapper import BaseWrapper
-from openrl.envs.wrappers.envpool_wrappers import VecEnvWrapper, VecMonitor
 
 
 def build_envs(
