'Remove a canvas widget from the scroll-watcher.  The
scroll-watcher will no longer ensure that the new canvas
widget is always contained in its canvas\'s scrollregion.
:param canvaswidget: The canvas widget to remove.
:type canvaswidget: CanvasWidget
:rtype: None'

def remove_child(self, canvaswidget):

    self._remove_child_widget(canvaswidget)
