qemu: parse: drop redundant video config
qemu: parse: drop redundant video config

The ram/vram = 0 bits aren't needed, and PostParse will fill in the
needed QXL default

Reviewed-by: John Ferlan <87558058f6f829e5ec976c8ef960720af4ff9c7d@redhat.com>
Signed-off-by: Cole Robinson <7cd45ff6ad1fb7cf556a02797d774247851499f8@redhat.com>

libvirt/libvirt,libvirt/libvirt,nertpinx/libvirt,eskultety/libvirt,olafhering/libvirt,eskultety/libvirt,nertpinx/libvirt,libvirt/libvirt,andreabolognani/libvirt,olafhering/libvirt,fabianfreyer/libvirt,fabianfreyer/libvirt,jardasgit/libvirt,fabianfreyer/libvirt,jfehlig/libvirt,andreabolognani/libvirt,andreabolognani/libvirt,jfehlig/libvirt,crobinso/libvirt,jardasgit/libvirt,eskultety/libvirt,fabianfreyer/libvirt,andreabolognani/libvirt,jardasgit/libvirt,eskultety/libvirt,crobinso/libvirt,jfehlig/libvirt,eskultety/libvirt,zippy2/libvirt,jardasgit/libvirt,zippy2/libvirt,olafhering/libvirt,nertpinx/libvirt,nertpinx/libvirt,nertpinx/libvirt,jardasgit/libvirt,andreabolognani/libvirt,olafhering/libvirt,crobinso/libvirt,crobinso/libvirt,jfehlig/libvirt,zippy2/libvirt,zippy2/libvirt,libvirt/libvirt,fabianfreyer/libvirt