cppcheck: uselessAssignmentArg

Change-Id: I230c35a5cf1b660041fb10f6ff81e219cad6a1b1
Reviewed-on: https://gerrit.libreoffice.org/55942
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

sw/source/core/text/frmpaint.cxx

@@ -152,15 +152,11 @@ SwExtraPainter::SwExtraPainter( const SwTextFrame *pFrame, SwViewShell *pVwSh,
         {
             bGoLeft = true;
             nX -= rLineInf.GetPosFromLeft();
-            if( nX < aRect.Left() )
-                bLineNum = false;
         }
         else
         {
             bGoLeft = false;
             nX += pFrame->getFrameArea().Width() + rLineInf.GetPosFromLeft();
-            if( nX > aRect.Right() )
-                bLineNum = false;
         }
     }
     if( eHor != text::HoriOrientation::NONE )