Fix graph free valgrind warnings

Due to the way we set up the graph structure, we don't always have good
parent information. The changes made in dd8cf0c12dd5e assumed this, so
back them out and just live with the dead pointers being there in the
memory while we are cleaning up after ourselves.

Signed-off-by: Dan McGee <dan@archlinux.org>

0 files changed, 0 insertions, 0 deletions