remove unused MoreButtons apis pieces

Change-Id: I087a45684041b6d816fbd09ebb24f727dd02d8be

include/vcl/morebtn.hxx

@@ -73,8 +73,6 @@ public:
 
     void                SetMoreText( const OUString& rNewText );
     void                SetLessText( const OUString& rNewText );
-    OUString            GetMoreText() const;
-    OUString            GetLessText() const;
 };
 
 inline void MoreButton::SetState( sal_Bool bNewState )

vcl/source/control/morebtn.cxx

@@ -206,14 +206,6 @@ void MoreButton::SetMoreText( const OUString& rText )
         SetText( rText );
 }
 
-OUString MoreButton::GetMoreText() const
-{
-    if ( mpMBData )
-        return mpMBData->maMoreText;
-    else
-        return PushButton::GetText();
-}
-
 void MoreButton::SetLessText( const OUString& rText )
 {
     if ( mpMBData )
@@ -223,12 +215,4 @@ void MoreButton::SetLessText( const OUString& rText )
         SetText( rText );
 }
 
-OUString MoreButton::GetLessText() const
-{
-    if ( mpMBData )
-        return mpMBData->maLessText;
-    else
-        return PushButton::GetText();
-}
-
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