UInteractiveToolActivity::~UInteractiveToolActivity

Note about the below: we didn't really need to repeat [Setup()](API\Plugins\ModelingComponents\UInteractiveToolActivity\Setup), [Tick()](API\Runtime\MovieScene\EUpdateClockSource), and [Render()](API\Runtime\SlateCore\Textures\ESlateTextureAtlasThreadId) here since these are staying the same as [UInteractionMechanic](API\Runtime\InteractiveToolsFramework\UInteractionMechanic) and get inherited.