sysroot: Drop unnecessary new sysroot object
sysroot: Drop unnecessary new sysroot object

We're asserting that "/" is the same as our path, so we don't need to
make a new object.

leandrosansilva/ostree,gatispaeglis/ostree,gatispaeglis/ostree,resin-io/ostree,sujitfulse/ostree,leandrosansilva/ostree,GNOME/ostree,sujitfulse/ostree,resin-io/ostree,GNOME/ostree,gatispaeglis/ostree,sujitfulse/ostree,sujitfulse/ostree,leandrosansilva/ostree,resin-io/ostree,gatispaeglis/ostree,GNOME/ostree,GNOME/ostree,resin-io/ostree,gatispaeglis/ostree,leandrosansilva/ostree,leandrosansilva/ostree,gatispaeglis/ostree,GNOME/ostree,resin-io/ostree,sujitfulse/ostree