Get rid of obsolete LocalFileHelper::IsFileContent

vnd.sun.star.wfs is long gone---or what else could this have been used for?

Change-Id: If39c9bdcb983f94206e0f58b7e1e8410fdcef089

cui/source/options/optpath.cxx

@@ -154,8 +154,6 @@ OUString Convert_Impl( const OUString& rValue )
         INetURLObject aObj( aValue );
         if ( aObj.GetProtocol() == INetProtocol::File )
             aReturn += aObj.PathToFileName();
-        else if ( ::utl::LocalFileHelper::IsFileContent( aValue ) )
-            aReturn += aObj.GetURLPath( INetURLObject::DECODE_WITH_CHARSET );
         if ( i+1 < nCount)
             aReturn += OUStringLiteral1<MULTIPATH_DELIMITER>();
     }

include/unotools/localfilehelper.hxx

@@ -47,7 +47,6 @@ namespace utl
         static bool ConvertURLToSystemPath( const OUString& rName, OUString& rReturn );
 
         static bool IsLocalFile(const OUString& rName);
-        static bool IsFileContent(const OUString& rName);
 
         static          ::com::sun::star::uno::Sequence< OUString >
                                 GetFolderContents( const OUString& rFolder, bool bFolder );

unotools/source/ucbhelper/localfilehelper.cxx

@@ -82,12 +82,6 @@ bool LocalFileHelper::IsLocalFile(const OUString& rName)
     return ConvertURLToPhysicalName(rName, aTmp);
 }
 
-bool LocalFileHelper::IsFileContent(const OUString& rName)
-{
-    OUString aTmp;
-    return ConvertURLToSystemPath(rName, aTmp);
-}
-
 typedef ::std::vector< OUString* > StringList_Impl;
 
 ::com::sun::star::uno::Sequence < OUString > LocalFileHelper::GetFolderContents( const OUString& rFolder, bool bFolder )