svtools: Drop unused ValueSet::{Format,ImpFormatItem} param

Now after

    Change-Id: I3593630b4758d0547264c0ed63fec7ac111ccfd7
    Author: Michael Weghorn <m.weghorn@posteo.de>
    Date:   Tue Oct 6 17:30:24 2026 +0200

        svtools: Drop ValueSetItemType::ImageAndText and related logic

, the `rRendercontext` param for ValueSet::ImplFormatItem
is unused, so drop it, and also the then unused
corresponding ValueSet::Format param.

Change-Id: Ibc8afabf147974da1ed67ef903abc13c054c4c12
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/211911
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>
Tested-by: Jenkins

include/svtools/valueset.hxx

@@ -212,8 +212,7 @@ private:
     friend class ValueSetAcc;
 
     SVT_DLLPRIVATE void         ImplDeleteItems();
-    SVT_DLLPRIVATE void ImplFormatItem(vcl::RenderContext const& rRenderContext,
-                                       ValueSetItem& rItem, tools::Rectangle aRect);
+    SVT_DLLPRIVATE void ImplFormatItem(ValueSetItem& rItem, tools::Rectangle aRect);
     // nItemId is the item to draw selected, but if nothing is selected something else may be drawn as selected instead, the item to draw
     // selected is returned
     SVT_DLLPRIVATE ValueSetItem* ImplGetDrawSelectItem(sal_uInt16 nItemId, const bool bFocus, tools::Rectangle& rRect);
@@ -349,7 +348,7 @@ public:
     void            SetExtraSpacing( sal_uInt16 nNewSpacing );
     void            SetMargin( sal_uInt16 nNewMargin );
 
-    void            Format(vcl::RenderContext const & rRenderContext);
+    void Format();
     void            SetFormat();
 
     Size            CalcWindowSizePixel(const Size& rItemSize,

svtools/source/control/valueset.cxx

@@ -627,7 +627,7 @@ void ValueSet::ImplHighlightItem(sal_uInt16 nItemId)
 void ValueSet::ImplDraw(vcl::RenderContext& rRenderContext)
 {
     if (mbFormat)
-        Format(rRenderContext);
+        Format();
 
     Point aDefPos;
     Size aSize = maVirDev->GetOutputSizePixel();
@@ -668,9 +668,9 @@ void ValueSet::SelectItem( sal_uInt16 nItemId )
     bool bNewOut = !mbFormat && IsReallyVisible();
     bool bNewLine = false;
 
-    if (weld::DrawingArea* pNeedsFormatToScroll = !mnCols ? GetDrawingArea() : nullptr)
+    if (!mnCols && GetDrawingArea())
     {
-        Format(pNeedsFormatToScroll->get_ref_device());
+        Format();
         // reset scrollbar so it's set to the later calculated mnFirstLine on
         // the next Format
         RecalcScrollBar();
@@ -774,7 +774,7 @@ void ValueSet::SetStyle(WinBits nStyle)
     }
 }
 
-void ValueSet::Format(vcl::RenderContext const & rRenderContext)
+void ValueSet::Format()
 {
     Size aWinSize(GetOutputSizePixel());
     size_t nItemCount = mItemList.size();
@@ -972,7 +972,7 @@ void ValueSet::Format(vcl::RenderContext const & rRenderContext)
                 }
 
                 pItem->mbVisible = true;
-                ImplFormatItem(rRenderContext, *pItem,
+                ImplFormatItem(*pItem,
                                tools::Rectangle(Point(x, y), Size(mnItemWidth, mnItemHeight)));
 
                 if (!((i + 1) % mnCols))
@@ -1218,8 +1218,7 @@ void ValueSet::ImplDrawSelect(vcl::RenderContext& rRenderContext, const tools::R
     }
 }
 
-void ValueSet::ImplFormatItem(vcl::RenderContext const&, ValueSetItem& rItem,
-                              tools::Rectangle aRect)
+void ValueSet::ImplFormatItem(ValueSetItem& rItem, tools::Rectangle aRect)
 {
     WinBits nStyle = GetStyle();
     if (nStyle & WB_ITEMBORDER)