virhostdev: Don't unref @pcidevs twice
virhostdev: Don't unref @pcidevs twice

In f08e6883cb4 I've made @pcidevs in
virHostdevReAttachPCIDevices() to be automatically unrefed using
VIR_AUTOUNREF() but I forgot to remove the line that explicitly
unrefs the object at the end of the function.

Signed-off-by: Michal Privoznik <83d82aaba2eed257f4814b0c239c260c4caaadf0@redhat.com>

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