Comment # 2 on bug 1128045 from Michal Kube��ek

I tried to do some research myself but couldn't find many examples of practical
use of /dev/kmem. It's certainly not needed for crash (not even "wr" command in
a live session). All I could find were notices about root kits (which is hardly
a reason to keep the feature) and "security researchers" (which, when you think
about it, is essentially the same kind of use, except for the motivation).

So let's disable it in master branch now so that the change reaches Tumblewed
with 5.1 kernel (in ~6 weeks). I would rather keep released openSUSE versions
(42.3 and 15.0) untouched. As for 15.1, I'm not sure, it's already rather late
in they release cycle.