Cancel preloading an image object's image data in the background.
The object should be left in a state where it has no image data. If cancel is called too late, the image will be kept in memory.
Since 1.23
Overridden from Efl.Gfx.Image_Load_Controller.load_async_cancel.
load_async_cancel @pure_virtual {}
void efl_gfx_image_load_controller_load_async_cancel(Eo *obj);