The size of the initrd is becoming an issue on existing installations
that have a small /boot partition.

See: https://github.com/fedora-silverblue/issue-tracker/issues/676

So let's drop a few dracut modules that are not using from the initrd to
save on space in /boot:

• fips & fips-crypto-policies: FIPS is not supported on Fedora
  See: https://fedoraproject.org/wiki/Changes/RemoveFipsModeSetup
  See: https://docs.fedoraproject.org/en-US/bootc/fips-crypto-policies/
• lunmask: Do not include support from booting from a LUN SAS devices as this is
  not commonly used on laptops and desktops
• memstrack: memstrack is for debug and development
• modsign: We don't include kernel module keys in the initrd
• nss-softokn: NSS is not included in the initrd