In some cases, where the rts library is not installed, IPA
was recently changed to try and tear down the local side of
the iscsi connection by trying to tear down bond and target
being offered. The whole attempt with this is to ensure that
no disk locks are in place which can prevent partition table
updates.
Since we added this logic, in some cases these commands can
fail and cause the deployment process to fail when it would
have otherwise succeeded. As such, suppress the errors.
Change-Id: I0e04936ad337b394dd68e9b0396a9f1203218f9f