Remove changing the splitter position as it can cause an inf. loop

Changing the splitter position can cause an infinite loop which is
most likely a cause of a rounding error. This happens constantly
when in HiDPI mode so remove it for now until a better solution is
found.

Change-Id: Id3551b41ea61c36a78f38a51a1fddfcfd104265a

sc/source/ui/inc/tabsplit.hxx

@@ -32,7 +32,6 @@ private:
 
 protected:
     virtual void    MouseButtonDown( const MouseEvent& rMEvt ) SAL_OVERRIDE;
-    virtual void    Splitting( Point& rSplitPos ) SAL_OVERRIDE;
 
 public:
                     ScTabSplitter( vcl::Window* pParent, WinBits nWinStyle,

sc/source/ui/view/tabsplit.cxx

@@ -43,18 +43,6 @@ void ScTabSplitter::MouseButtonDown( const MouseEvent& rMEvt )
         Splitter::MouseButtonDown( rMEvt );
 }
 
-void ScTabSplitter::Splitting( Point& rSplitPos )
-{
-    vcl::Window* pParent = GetParent();
-    Point aScreenPos = pParent->OutputToNormalizedScreenPixel( rSplitPos );
-    pViewData->GetView()->SnapSplitPos( aScreenPos );
-    Point aNew = pParent->NormalizedScreenToOutputPixel( aScreenPos );
-    if ( IsHorizontal() )
-        rSplitPos.X() = aNew.X();
-    else
-        rSplitPos.Y() = aNew.Y();
-}
-
 void ScTabSplitter::SetFixed(bool bSet)
 {
     bFixed = bSet;