reverting Project settings

Project/ProjectSettings/EditorBuildSettings.asset

 EditorBuildSettings:
   m_ObjectHideFlags: 0
   serializedVersion: 2
-  m_Scenes:
-  - enabled: 1
-    path: Assets/ML-Agents/Examples/3DBall/Scenes/3DBall.unity
-    guid: b9ac0cbf961bf4dacbfa0aa9c0d60aaa
+  m_Scenes: []
   m_configObjects: {}

Project/ProjectSettings/UnityConnectSettings.asset

 UnityConnectSettings:
   m_ObjectHideFlags: 0
   serializedVersion: 1
-  m_Enabled: 0
+  m_Enabled: 1
   m_TestMode: 0
   m_EventOldUrl: https://api.uca.cloud.unity3d.com/v1/events
   m_EventUrl: https://cdp.cloud.unity3d.com/v1/events