https://github.com/systemd/systemd/blob/v243/NEWS#L3

From the [NEWS][1]:

> * Man pages are not built by default anymore (html pages were already
>   disabled by default), to make development builds quicker. When
>   building systemd for a full installation with documentation, meson
>   should be called with -Dman=true and/or -Dhtml=true as appropriate.
>   The default was changed based on the assumption that quick one-off or
>   repeated development builds are much more common than full optimized
>   builds for installation, and people need to pass various other
>   options to when doing "proper" builds anyway, so the gain from making
>   development builds quicker is bigger than the one time disruption for
>   packagers.

[1]: https://github.com/systemd/systemd/blob/f06530d86ba7688067fc2758b5e54599bda1e4a0/NEWS#L66-L81

Instead of removing `/var/log/journal` after installation, configure
systemd to not create it in the first place.

Fixes: #1216