loplugin:useuniqueptr in LwpChangeMgr

these should be held by rtl::Reference

Change-Id: I135352dafc6ba0e274d344aec432fe4eabbafe97
Reviewed-on: https://gerrit.libreoffice.org/56333
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

lotuswordpro/inc/lwpchangemgr.hxx

@@ -85,7 +85,7 @@ private:
     std::map<LwpFrib*,OUString>* m_pFribMap;
     std::map<LwpFrib*,OUString> m_DocFribMap;
     std::map<LwpFrib*,OUString> m_HeadFootFribMap;
-    std::vector<XFChangeRegion*> m_ChangeList;
+    std::vector<rtl::Reference<XFChangeRegion>> m_ChangeList;
     sal_uInt32 m_nCounter;
 };
 

lotuswordpro/source/filter/lwpchangemgr.cxx

@@ -146,10 +146,6 @@ void LwpChangeMgr::ConvertAllChange(IXFStream* pStream)
 
     pStream->EndElement("text:tracked-changes");
 
-    for (auto const& elem : m_ChangeList)
-    {
-        delete elem;
-    }
     m_ChangeList.clear();
 }
 void LwpChangeMgr::SetHeadFootFribMap(bool bFlag)