Valgrind: Callgrind log is not XML #2

Complements commit 1840a89aff

Change-Id: Idf09e77ae766aa43683ffaf0a7aa108f4b41d705
Reviewed-by: hjk <hjk121@nokiamail.com>

src/plugins/valgrind/callgrindtool.h

@@ -51,7 +51,6 @@ public:
     QWidget *createWidgets();
 
     void startTool(Analyzer::StartMode mode);
-    void loadExternalXmlLogFile();
 
 public slots:
     void handleShowCostsOfFunction();