tdf#120794 crash while selecting a drawing line

regression from
    commit b4fc996520b47a6212661a9de3a1c72ccfc379a4
    loplugin:useuniqueptr in SdrHdlList

Change-Id: Ic49c60020b1d86b4c65cc4662393415b96af714e
Reviewed-on: https://gerrit.libreoffice.org/62222
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
diff --git a/svx/source/svdraw/svdmrkv1.cxx b/svx/source/svdraw/svdmrkv1.cxx
index d9a6fc6..34b24cd 100644
--- a/svx/source/svdraw/svdmrkv1.cxx
+++ b/svx/source/svdraw/svdmrkv1.cxx
@@ -156,7 +156,6 @@ bool SdrMarkView::ImpMarkPoint(SdrHdl* pHdl, SdrMark* pMark, bool bUnmark)
                if (pPlusHdl->IsPlusHdl() && pPlusHdl->GetSourceHdlNum()==nHdlNum)
                {
                    maHdlList.RemoveHdl(i);
                    delete pPlusHdl;
                }
            }
        }