1a - Remove mount point /home of /dev/mapper/cr_home (8.00 GiB) from /etc/fstab -> 1b
1b - Unmount /dev/mapper/cr_home (8.00 GiB) at /home -> 1c
1c - Delete xfs on /dev/mapper/cr_home (8.00 GiB) -> 2a

2a - Remove encryption layer device on /dev/sda2 from /etc/crypttab -> 2b
2b - Deactivate encryption layer device on /dev/sda2 -> 2c
2c - Delete encryption layer device on /dev/sda2 ->
