message: options model unused signals cleanup
diff: @@ -134,11 +134,6 @@ private:
  Q_SIGNALS:
  void displayUnitChanged(int unit);
  - void zeromintEnableChanged(bool);
  - void zeromintAddressesChanged(bool);
  - void zeromintPercentageChanged(int);
  - void preferredDenomChanged(int);
  - void anonymizePivxAmountChanged(int);
  void coinControlFeaturesChanged(bool);
  void showHideColdStakingScreen(bool);
  void hideChartsChanged(bool);
  