vsh: mark ctl as unused in vshReadline
vsh: mark ctl as unused in vshReadline

My commit removed the last use in the version for platforms
without readline.

Fixes: c937c1d23db00cf0f33091f9d30f7ac33d9d6aa4

Signed-off-by: Ján Tomko <4cab11cfb98d3c937327354a78eb07dbb6ee2bc6@redhat.com>

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