When implemented in a derived class, removes local role assignments so that role assignments, in all descendant objects, are re-inherited from the parent object.
Assembly: Microsoft.SharePoint (in Microsoft.SharePoint.dll)
All descendant objects of the object on which this method is run will also now inherit from this object's parent, not just the immediate children objects.
We recommend that you carefully test code that uses this method to see the effect it has on descendant objects.
This method does nothing if the HasUniqueRoleAssignments property is false.
For more information about permission inheritance, see Fine-grained permission reference for SharePoint Server 2013.