mxStatusIndicator is unused

ever since
    commit 8dc268058690337459bc38862c1532c34f171a48
    Author: Björn Milcke <bm@openoffice.org>
    Date:   Fri Feb 9 15:48:29 2001 +0000
    Req. change Load/SaveAs for XML format - removed deprecated CTOR

Change-Id: I772123e89391fea3578c7ed0986e1bc2d2a42a97
diff --git a/compilerplugins/clang/unusedfields.readonly.results b/compilerplugins/clang/unusedfields.readonly.results
index d2878cf..18f29ba 100644
--- a/compilerplugins/clang/unusedfields.readonly.results
+++ b/compilerplugins/clang/unusedfields.readonly.results
@@ -1920,7 +1920,5 @@ writerfilter/source/ooxml/OOXMLFactory.hxx:62
    writerfilter::ooxml::AttributeInfo m_nRef Id
xmloff/inc/MultiPropertySetHelper.hxx:78
    MultiPropertySetHelper aEmptyAny css::uno::Any
xmloff/inc/SchXMLExport.hxx:39
    SchXMLExport mxStatusIndicator css::uno::Reference<css::task::XStatusIndicator>
xmloff/source/core/xmlexp.cxx:251
    SvXMLExport_Impl maSaveOptions class SvtSaveOptions
diff --git a/xmloff/inc/SchXMLExport.hxx b/xmloff/inc/SchXMLExport.hxx
index 8792ea8..a2a3630 100644
--- a/xmloff/inc/SchXMLExport.hxx
+++ b/xmloff/inc/SchXMLExport.hxx
@@ -36,7 +36,6 @@ namespace com { namespace sun { namespace star {
class SchXMLExport : public SvXMLExport
{
private:
    css::uno::Reference< css::task::XStatusIndicator > mxStatusIndicator;
    rtl::Reference<SchXMLAutoStylePoolP> maAutoStylePool;

    rtl::Reference<SchXMLExportHelper> maExportHelper;
diff --git a/xmloff/source/chart/SchXMLExport.cxx b/xmloff/source/chart/SchXMLExport.cxx
index 92b53ca..26f46f8 100644
--- a/xmloff/source/chart/SchXMLExport.cxx
+++ b/xmloff/source/chart/SchXMLExport.cxx
@@ -3517,12 +3517,6 @@ SchXMLExport::SchXMLExport(

SchXMLExport::~SchXMLExport()
{
    // stop progress view
    if( mxStatusIndicator.is())
    {
        mxStatusIndicator->end();
        mxStatusIndicator->reset();
    }
}

ErrCode SchXMLExport::exportDoc( enum ::xmloff::token::XMLTokenEnum eClass )