rpm: Further simplify ignores for libguestfs image
rpm: Further simplify ignores for libguestfs image

qemu-kvm-core no longer drags in usbredir, so ignoring it
explicitly has become unnecessary.

Signed-off-by: Andrea Bolognani <3ada0bee826c753786fdbba72243dfba997094cf@redhat.com>

kubevirt/kubevirt,kubevirt/kubevirt,kubevirt/kubevirt,kubevirt/kubevirt