Fix double reboot during resume_state_on_host_boot

Re-basing my commit introduced a mistake I did not catch before the
merge occurred.  resume_state_on_host_boot is calling both
_create_domain_and_network followed by _hard_reboot. It should only
call _hard_reboot.

Change-Id: I52be2c0d0c85abe6386842c980f26b3c5713e3e3
Merge "Fix double reboot during resume_state_on_host_boot"
Merge remote-tracking branch 'citrix/master' into build-temp