code: public void removeCursorController(GVRCursorController controller)
      {
          controller.setEnable(false);
          controllers.remove(controller);
          controller.getGVRContext().getEventManager().sendEvent(this, ICursorControllerListener.class,
                  "onCursorControllerRemoved", controller);
      }
docs: Remove the previously added {@link GVRCursorController} added to the
  framework.
  
  @param controller the external {@link GVRCursorController} to be removed from
  the framework.