UMeshTopologySelectionMechanic::DisableBehaviors

Removes the mechanic's own click/hover handlers, which means that the parent tool will need to call [UpdateSelection()](API\Plugins\ModelingComponents\Selection\UMeshTopologySelectionMechanic\UpdateSelection), [UpdateHighlight()](API\Plugins\ModelingComponents\Selection\UMeshTopologySelectionMechanic\UpdateHighlight), [ClearHighlight()](API\Plugins\ModelingComponents\Selection\UMeshTopologySelectionMechanic\ClearHighlight), and [ClearSelection()](API\Plugins\ModelingComponents\Selection\UMeshTopologySelectionMechanic\ClearSelection) from its own hover/click handlers.