ostree: Remove duplicate command in help output
ostree: Remove duplicate command in help output

The 'remote' command was listed twice. Also, the list
was almost-but-not-quite alphabetically sorted. Fix
that too.

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