Don't turn off hdmi output

The small power savings aren't worth the cost of not being able to
see anything on the console in case of problems, plus this didn't
work with recent Raspberry Pi OS versions anyway.

run/archiveloop

@@ -38,9 +38,6 @@ then
   fi
 fi
 
-# turning off hdmi saves a little bit of power
-/usr/bin/tvservice -o || log "failed to turn off hdmi"
-
 export CAM_MOUNT=/mnt/cam
 export MUSIC_MOUNT=/mnt/music
 export ARCHIVE_MOUNT=/mnt/archive