don't fail delete if pci can't be found
don't fail delete if pci can't be found

Change-Id: I42233b656b5009025eca9c137779590677f9f76a
Signed-off-by: Moshe Levi <572441478635b7196f8aa99df48ffa6cbee972dd@mellanox.com>

mellanox-openstack/mellanox-eswitchd,Mellanox/eswitchd,Mellanox/eswitchd,mellanox-openstack/mellanox-eswitchd