sd-image-*.nix: Drop minimal profile

It's annoying to not have manpages when installing.

-1
nixos/modules/installer/cd-dvd/sd-image-aarch64.nix
···
in
{
imports = [
-
../../profiles/minimal.nix
../../profiles/installation-device.nix
./sd-image.nix
];
-1
nixos/modules/installer/cd-dvd/sd-image-armv7l-multiplatform.nix
···
in
{
imports = [
-
../../profiles/minimal.nix
../../profiles/installation-device.nix
./sd-image.nix
];
-1
nixos/modules/installer/cd-dvd/sd-image-raspberrypi.nix
···
in
{
imports = [
-
../../profiles/minimal.nix
../../profiles/installation-device.nix
./sd-image.nix
];