result of DdeQueryStringW unused

since

commit 88e3b846b8a4bd4ce5507d1bc5441ee4167e5326
Date:   Wed Apr 6 11:28:44 2016 +0200

    remove some dead bits of DDE

Change-Id: I66b2f8365e3fed15391ff0fe2eb3c874b5054e91
Reviewed-on: https://gerrit.libreoffice.org/62070
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>
diff --git a/svl/source/svdde/ddesvr.cxx b/svl/source/svdde/ddesvr.cxx
index e79f260..1848342 100644
--- a/svl/source/svdde/ddesvr.cxx
+++ b/svl/source/svdde/ddesvr.cxx
@@ -356,29 +356,14 @@ DdeTopic* DdeInternal::FindTopic( DdeService& rService, HSZ hTopic )
{
    std::vector<DdeTopic*>::iterator iter;
    std::vector<DdeTopic*> &rTopics = rService.aTopics;
    bool bContinue = false;
    DdeInstData* pInst = ImpGetInstData();
    assert(pInst);

    do
    {   // middle check loop
        for ( iter = rTopics.begin(); iter != rTopics.end(); ++iter )
        {
            if ( *(*iter)->pName == hTopic )
                return *iter;
        }

        bContinue = !bContinue;
        if( !bContinue )
            break;

        // Let's query our subclass
        WCHAR chBuf[250];
        DdeQueryStringW(pInst->hDdeInstSvr,hTopic,chBuf,SAL_N_ELEMENTS(chBuf),CP_WINUNICODE );
        bContinue = false;
        // We need to search again
    for ( iter = rTopics.begin(); iter != rTopics.end(); ++iter )
    {
        if ( *(*iter)->pName == hTopic )
            return *iter;
    }
    while( bContinue );

    return nullptr;
}