[Swan-dev] pointlessly building the KLIPS kernel module on the KVMs

[Andrew Cagney]

If you look through a recent test result on
https://testing.libreswan.org/ you'll notice KERNEL errors - these are
from the KLIPS module panicking.  This has problem seemingly been
known for some time but forgotten - KLIPS will panic on >=4.x kernels
(at least those shipped by fedora).

Given the code is isolated and (hopeful) treated read-only - itt
should still build on old systems.  However, I struggle to see a
reason for building it for Fedora 30, and would again like to disable
it.

(this shouldn't be confused with the klips userland code which can
continue to build).

Andrew