loplugin:unuseddefaultparam in sot

Change-Id: I36f88f060377fa754d4a47956932d73c47d14ece
diff --git a/sot/source/sdstor/stgdir.cxx b/sot/source/sdstor/stgdir.cxx
index 8e8eaa0..e093936 100644
--- a/sot/source/sdstor/stgdir.cxx
+++ b/sot/source/sdstor/stgdir.cxx
@@ -261,11 +261,11 @@ bool StgDirEntry::IsDirty()

// Set up a stream.

void StgDirEntry::OpenStream( StgIo& rIo, bool bForceBig )
void StgDirEntry::OpenStream( StgIo& rIo )
{
    sal_Int32 nThreshold = (sal_uInt16) rIo.m_aHdr.GetThreshold();
    delete m_pStgStrm;
    if( !bForceBig && m_aEntry.GetSize() < nThreshold )
    if( m_aEntry.GetSize() < nThreshold )
        m_pStgStrm = new StgSmallStrm( rIo, *this );
    else
        m_pStgStrm = new StgDataStrm( rIo, *this );
diff --git a/sot/source/sdstor/stgdir.hxx b/sot/source/sdstor/stgdir.hxx
index 7878de3..cecbba4 100644
--- a/sot/source/sdstor/stgdir.hxx
+++ b/sot/source/sdstor/stgdir.hxx
@@ -78,7 +78,7 @@ public:

    bool Commit();

    void  OpenStream( StgIo&, bool=false );     // set up an appropriate stream
    void  OpenStream( StgIo& );     // set up an appropriate stream
    void  Close();
    sal_Int32 GetSize();
    bool  SetSize( sal_Int32 );