No apparent reason to limit nXStep to sal_uInt16 instead of long

Change-Id: Iee74da2f6e58fa809b068675c250c0445d9adf58

cui/source/tabpages/numpages.cxx

@@ -2322,7 +2322,7 @@ void SvxNumberingPreview::Paint(vcl::RenderContext& rRenderContext, const ::tool
         long nWidthRelation = 30; // chapter dialog
 
         // height per level
-        sal_uInt16 nXStep = sal::static_int_cast<sal_uInt16>(aSize.Width() / (3 * pActNum->GetLevelCount()));
+        long nXStep = aSize.Width() / (3 * pActNum->GetLevelCount());
         if (pActNum->GetLevelCount() < 10)
             nXStep /= 2;
         long nYStart = 4;