tests: Add a commented out test for mirroring with deltas
tests: Add a commented out test for mirroring with deltas

GNOME/ostree,sujitfulse/ostree,leandrosansilva/ostree,sujitfulse/ostree,gatispaeglis/ostree,gatispaeglis/ostree,GNOME/ostree,GNOME/ostree,gatispaeglis/ostree,leandrosansilva/ostree,gatispaeglis/ostree,GNOME/ostree,sujitfulse/ostree,leandrosansilva/ostree,sujitfulse/ostree,GNOME/ostree,gatispaeglis/ostree,sujitfulse/ostree,leandrosansilva/ostree,gatispaeglis/ostree,leandrosansilva/ostree