Tutorial step #3 remove redundant button widget constructors

1.   It's nearly always the case that the Help button has
     no methods called on it except its ctor, i.e.
     no changes to its default behaviour, so explicit
     mention of it can be removed.
2.   Thats's often the case for the Cancel button
3.   That's occasionally the case for the OK button

Change-Id: Ic192962b2e55546cd448d7a69394ae13a743299e

svx/source/unodialogs/textconversiondlgs/chinese_translationdialog.cxx

@@ -54,8 +54,6 @@ ChineseTranslationDialog::ChineseTranslationDialog( Window* pParent )
     , m_aPB_Editterms( this, TextConversionDlgs_ResId( PB_EDITTERMS ) )
     , m_aFL_Bottomline( this, TextConversionDlgs_ResId( T_FL_BOTTOMLINE ) )
     , m_aBP_OK( this, TextConversionDlgs_ResId( PB_OK ) )
-    , m_aBP_Cancel( this, TextConversionDlgs_ResId( PB_CANCEL ) )
-    , m_aBP_Help( this, TextConversionDlgs_ResId( PB_HELP ) )
     , m_pDictionaryDialog(0)
 {
     FreeResource();

svx/source/unodialogs/textconversiondlgs/chinese_translationdialog.hxx

@@ -65,8 +65,6 @@ private:
     FixedLine   m_aFL_Bottomline;
 
     OKButton        m_aBP_OK;
-    CancelButton    m_aBP_Cancel;
-    HelpButton      m_aBP_Help;
 
     ChineseDictionaryDialog* m_pDictionaryDialog;
 };