lxc: Drop useless check in live device update
lxc: Drop useless check in live device update

Checking the new device definition makes little sense when lxc driver
does not support live device update at all.

Signed-off-by: Jiri Denemark <62bdf77dc47919a4d59a91822129d14633cfca81@redhat.com>

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