cleanup

Project/Assets/ML-Agents/Examples/Walker/Scenes/WalkerDynamic.unity

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       propertyPath: walkingSpeed
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+      value: 10
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-      value: 15
+      value: 10
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Project/Assets/ML-Agents/Examples/Walker/Scripts/WalkerAgent.cs

         }
     }
 
-    public Transform rotTest;
     /// <summary>
     /// Loop over body parts to add them to observation.
     /// </summary>