[gnome-control-center] Non-fast-forward update to branch iainl/privacy-panel-disconnect-settings-signal-properly

[Iain Lane <iainl src gnome org>]

The branch 'iainl/privacy-panel-disconnect-settings-signal-properly' was changed in a way that was not a 
fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  9b497ea... privacy: Disconnect from GSettings::changed when label is d
  e973375... privacy: Don't strdup keys when connecting the label cb

Commits added to the branch:

  2dd7a2c... privacy: Remove {get,set}_on_off_label2