fdo#67871: Revert "coverity#705731 Resource leak"

... and delete pContourPolyPolygon instead. Otherwise there is a null pointer
dereference.

This reverts commit e3258713.

Change-Id: Id9d8c514c786b42233a35a9ade55d0c05986fb08

svx/source/svdraw/svdotext.cxx

@@ -601,6 +601,7 @@ void SdrTextObj::ImpSetContourPolygon( SdrOutliner& rOutliner, Rectangle& rAncho
     {
         // Take line width into account.
         // When doing the hit test, avoid this. (Performance!)
+        pContourPolyPolygon = new basegfx::B2DPolyPolygon();
 
         // test if shadow needs to be avoided for TakeContour()
         const SfxItemSet& rSet = GetObjectItemSet();
@@ -636,6 +637,7 @@ void SdrTextObj::ImpSetContourPolygon( SdrOutliner& rOutliner, Rectangle& rAncho
     }
 
     rOutliner.SetPolygon(aXorPolyPolygon, pContourPolyPolygon);
+    delete pContourPolyPolygon;
 }
 
 void SdrTextObj::TakeUnrotatedSnapRect(Rectangle& rRect) const