As it was done in the previous change for local installation
https://review.opendev.org/c/starlingx/metal/+/863322
This change removes the ISO embedded machine-id file to allow the
value regeneration after the first boot post install for subclouds
that use the redfish protocol when added in a system controller.
Test Plan
[PASS] install 2 subclouds from the system controller containing the
patch and check the values in /etc/machine-id and
/var/lib/dbus/machine-id to unique for each subcloud
Closes-Bug: 2037434
Change-Id: If7a631b5769cb499956a7e5ee33e3361a6230452
Signed-off-by: Andre Kantek <andrefernandozanella.kantek@windriver.com>