[Bug 1208554] Remove the explicit requires on kmod-libs

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1208554

--- Comment #3 from David Shea  ---
Huh, I didn't catch that systemd links to libkmod. Based on that I would expect
the net effect to be nothing.

I agree that this is low-to-no priority. I just ran into it while unraveling
and explaining away some rpmdiff messages and thought I would share.