Remove ql2500-firmware from Fedora 19 ks

Change-Id: I1166d4c90a8d6e9f1b5041a6d419d9735dbeaf94
Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1097360
Signed-off-by: Lukas Zapletal <lzap+git@redhat.com>