Remove use of legacy system state

The OpenBMC state function has been moved to the phosphor-state-manager
repository. The chassis power state is tracked via systemd targets
so notification from this power application is no longer needed.

Change-Id: Ie74b0fe589944ab65645f92ab3539c2ee74dda9c
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
5 files changed