The use of unionfs-fuse (57a0f140643cde409022e297ed05e05f8d34d778)
slows down the KDE 5 test enough that it hits Hydra timeouts. (E.g. on
my laptop it went from ~5 min to ~30 min.) So disable it for the KDE
test.
http://hydra.nixos.org/build/45127422
(cherry picked from commit 3fcbcf25568cd629644a680562f47762d1ae15b2)
Found out during testing of the Tesseract upgrade the kde5 and sddm
tests don't actually use OCR, so let's disable support for it.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
Cc: @ttuegel
