Revert PlayerInput asset copy for single player

Author: jfreire-unity

Packages/com.unity.inputsystem/InputSystem/Plugins/PlayerInput/PlayerInput.cs

@@ -342,14 +342,8 @@ public InputActionAsset actions
                         UninitializeActions();
                 }
 
-                var didChange = m_Actions != null;
-
                 m_Actions = value;
 
-                if (didChange || m_Enabled)
-                    // copy action asset for the first player so that the original asset stays untouched
-                    CopyActionAssetAndApplyBindingOverrides();
-
                 if (m_Enabled)
                 {
                     ClearCaches();
@@ -1810,13 +1804,6 @@ void Reset()
 
         #endif
 
-        private void Awake()
-        {
-            // If an action asset is assigned copy it to avoid modifying the original asset.
-            if (m_Actions != null)
-                CopyActionAssetAndApplyBindingOverrides();
-        }
-
         private void OnEnable()
         {
             m_Enabled = true;