Bug#1029444: dmraid: remove force_load dm-raid45 not shipped by Debian

[Alban Browaeys]

I found out that dmraid will be removed with trixie. So you might want
to let this bitrot. This is not critical and will be fixed either way
by dmraid removal.

Still, this would be fine for bookworm not to have this error at boot.

Cheers,
Alban