vcl: pImplSVData->maAppData.mnDefaultLayoutBorder is never used, get rid of it

Change-Id: I417e84b2c797ec2c43fb232f4a8412488b6d3ab4

vcl/inc/svdata.hxx

@@ -139,8 +139,6 @@ struct ImplSVAppData
     bool                    mbNoYield;                      // Application::Yield will not wait for events if the queue is empty
                                                             // essentially that makes it the same as Application::Reschedule
     Application::DialogCancelMode meDialogCancel;           // true: All Dialog::Execute() calls will be terminated immediately with return false
-    long                    mnDefaultLayoutBorder;          // default value in pixel for layout distances used
-                                                            // in window arrangers
 
     /** Controls whether showing any IME status window is toggled on or off.
 

vcl/source/app/svdata.cxx

@@ -80,9 +80,6 @@ void ImplInitSVData()
     memset( pImplSVData, 0, sizeof( ImplSVData ) );
     pImplSVData->maHelpData.mbAutoHelpId = true;
     pImplSVData->maNWFData.maMenuBarHighlightTextColor = Color( COL_TRANSPARENT );
-
-    // mark default layout border as unitialized
-    pImplSVData->maAppData.mnDefaultLayoutBorder = -1;
 }
 
 void ImplDeInitSVData()

vcl/source/window/settings.cxx

@@ -153,8 +153,6 @@ void Window::ImplUpdateGlobalSettings( AllSettings& rSettings, bool bCallHdl )
     aTmpSt.SetHighContrastMode( false );
     rSettings.SetStyleSettings( aTmpSt );
     ImplGetFrame()->UpdateSettings( rSettings );
-    // reset default border width for layouters
-    ImplGetSVData()->maAppData.mnDefaultLayoutBorder = -1;
 
     // Verify availability of the configured UI font, otherwise choose "Andale Sans UI"