Remove default values in InsertErrorBarsDialog constructor.

- Require passing desired error bar to modify in constructor
and not have YErrorBar as default.

chart2/source/controller/inc/dlg_InsertErrorBars.hxx

@@ -47,7 +47,7 @@ public:
     InsertErrorBarsDialog( Window* pParent, const SfxItemSet& rMyAttrs,
                            const ::com::sun::star::uno::Reference<
                                ::com::sun::star::chart2::XChartDocument > & xChartDocument,
-                           ErrorBarResources::tErrorBarType eType = ErrorBarResources::ERROR_BAR_Y );
+                           ErrorBarResources::tErrorBarType eType );
     virtual ~InsertErrorBarsDialog();
 
     void SetAxisMinorStepWidthForErrorBarDecimals( double fMinorStepWidth );