rowDeleted
Emits the ::row-deleted signal on @tree_model.
See signal@Gtk.TreeModel::row-deleted.
This should be called by models after a row has been removed. The location pointed to by @path should be the location that the row previously was at. It may not be a valid location anymore.
Nodes that are deleted are not unreffed, this means that any outstanding references on the deleted node should not be released.
Parameters
path
a GtkTreePath
pointing to the previous location of the deleted row