call close method of Wrapper when overriding (#2711)

add a call to __del__ of parent class

Revert "add a call to __del__ of parent class"

This reverts commit 24d40d871e4a5858a4a2e70bdc2c155504b4e5a6.

gym/wrappers/record_video.py

@@ -118,6 +118,7 @@ class RecordVideo(gym.Wrapper):
         self.recorded_frames = 1
 
     def close(self):
+        super().close()
         self.close_video_recorder()
 
     def __del__(self):