Update systemd to version 253.1 / rev 384 via SR 1073063
    
    https://build.opensuse.org/request/show/1073063
    by user fbui + dimstar_suse
    - Drop 0005-udev-create-default-symlinks-for-primary-cd_dvd-driv.patch
      These obsolete symlinks were kept because several years ago VLC was still
      relying on some of them. However it's been a long a time ago that it's been
      fixed and cdrom or similar devices are discovered in a better way.
    
    - Enable that systemd can load the IMA policy from
      /etc/ima/ima-policy.  This is used to complement dracut-ima when
      using SELinux, as the SELinux policy should not be loaded in the
      initrd (https://github.com/openSUSE/microos-tools/pull/14)