Remove deprecated heartbeat policy check
Remove deprecated heartbeat policy check

IPA does not use vendor passthru entry point, remove corresponding
policy check.

Change-Id: Ia2f981c9fe6cbb848f248b0c4c2f3339efcabec0

SauloAislan/ironic,NaohiroTamura/ironic,openstack/ironic,pshchelo/ironic,pshchelo/ironic,NaohiroTamura/ironic,openstack/ironic,SauloAislan/ironic