Remove get-ns-bg from ns-loop for MDT cgm (#287)
Remove get-ns-bg from ns-loop for MDT cgm (#287)

It's unlikely that sgv values get to NS from any other process than
openaps, so fetching it doesn't bring any new information down.
Additionally, it seems to interfere with the recent-missing-entries
gap calculation.
PieterGit/oref0,PieterGit/oref0,openaps/oref0,openaps/oref0,PieterGit/oref0,PieterGit/oref0,openaps/oref0,openaps/oref0