Remove restart of iscsi services.

These services are named differently on Fedora and were failing the
run of os-collect-config.  Removing them altogether because, there's
no good reason for them to be restarted for Ubuntu either.

Change-Id: Ie99fb0c0071f1569651b75d5a9c0cdf53d37c57c
Merge "Remove restart of iscsi services."