tdf#99130 use subdivision on B2DPolygon, angle based subdivision

Remove the subdivider we used until now as there is a better
way to subdivide a polygon with getDefaultAdaptiveSubdivision,
which in additiona also caches the result. The subdivider used in
getDefaultAdaptiveSubdivision was a limited count based subdivider
so this exchanges that with an angle based one which gives much
better results.

Change-Id: I95c009ccf3d54305df0d8eef177cab0df0a23bea
Reviewed-on: https://gerrit.libreoffice.org/25033
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>

vcl/opengl/gdiimpl.cxx

@@ -2064,9 +2064,7 @@ bool OpenGLSalGraphicsImpl::drawPolyLine(
         basegfx::B2DPolygon aPolygon(rPolygon);
 
         if (aPolygon.areControlPointsUsed())
-            aPolygon = basegfx::tools::polygonSubdivide(aPolygon, 5 * F_PI180);
-        else
-            aPolygon.removeDoublePoints();
+            aPolygon = aPolygon.getDefaultAdaptiveSubdivision();
 
         DrawPolyLine(aPolygon, fLineWidth, eLineJoin, eLineCap, fMiterMinimumAngle);
     }