ScImportStarCalc10 appears uncallable

I can't see a mention of "StarCalc 1.0" anywhere in our code
which might appear here as a filtername

last mention of something like it is...

commit cf8f6fe1
Author: Michael Stahl <mstahl@redhat.com>
Date:   Tue Feb 5 15:49:26 2013 +0100

    officecfg: remove references to binfilter formats

Change-Id: Ia6f9ab89489e33ca3680c150fd896035b8dee491
Reviewed-on: https://gerrit.libreoffice.org/44426Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Eike Rathke <erack@redhat.com>

sc/inc/filter.hxx

@@ -65,7 +65,6 @@ class SAL_DLLPUBLIC_RTTI ScFormatFilterPlugin {
         // eFormat == EIF_BIFF5 -> only Biff5 stream is read successfully (in an Excel97 doc, too)
         // eFormat == EIF_BIFF8 -> only Biff8 stream is read successfully (only in Excel97 docs)
         // eFormat == EIF_BIFF_LE4 -> only non storage files _might_ be read successfully
-    virtual ErrCode ScImportStarCalc10( SvStream&, ScDocument* ) = 0;
     virtual ErrCode ScImportDif( SvStream&, ScDocument*, const ScAddress& rInsPos,
                  const rtl_TextEncoding eSrc ) = 0;
     virtual ErrCode ScImportRTF( SvStream&, const OUString& rBaseURL, ScDocument*, ScRange& rRange ) = 0;

sc/source/filter/inc/ftools.hxx

@@ -270,7 +270,6 @@ public:
         // eFormat == EIF_BIFF5 -> only Biff5 stream leads to success (even in an Excel97 doc)
         // eFormat == EIF_BIFF8 -> only Biff8 stream leads to success (only in Excel97 docs)
         // eFormat == EIF_BIFF_LE4 -> only non-storage files _could_ lead to success
-    virtual ErrCode ScImportStarCalc10( SvStream&, ScDocument* ) override;
     virtual ErrCode ScImportDif( SvStream&, ScDocument*, const ScAddress& rInsPos,
                  const rtl_TextEncoding eSrc ) override;
     virtual ErrCode ScImportRTF( SvStream&, const OUString& rBaseURL, ScDocument*, ScRange& rRange ) override;

sc/source/filter/starcalc/scflt.cxx

@@ -2400,11 +2400,4 @@ void Sc10Import::LoadObjects()
     }
 }
 
-ErrCode ScFormatFilterPluginImpl::ScImportStarCalc10( SvStream& rStream, ScDocument* pDocument )
-{
-    rStream.Seek( 0 );
-    Sc10Import  aImport( rStream, pDocument );
-    return aImport.Import();
-}
-
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

sc/source/ui/docshell/docsh.cxx

@@ -1089,21 +1089,6 @@ bool ScDocShell::ConvertFrom( SfxMedium& rMedium )
 
         if (aFltName == pFilterXML)
             bRet = LoadXML( &rMedium, nullptr );
-        else if (aFltName == "StarCalc 1.0")
-        {
-            SvStream* pStream = rMedium.GetInStream();
-            if (pStream)
-            {
-                ErrCode eError = ScFormatFilter::Get().ScImportStarCalc10( *pStream, &aDocument );
-                if (eError != ERRCODE_NONE)
-                {
-                    if (!GetError())
-                        SetError(eError);
-                }
-                else
-                    bRet = true;
-            }
-        }
         else if (aFltName == pFilterLotus)
         {
             OUString sItStr;