analyzer: remove unneeded function declaration

Change-Id: Iffee3a32a711085a4904e743a18d875306a4e546
Reviewed-on: http://codereview.qt.nokia.com/1289
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: hjk <qthjk@ovi.com>

src/plugins/valgrind/callgrindtool.h

@@ -54,7 +54,6 @@ public:
     ToolMode toolMode() const;
 
     void extensionsInitialized();
-    void initializeDockWidgets();
 
     Analyzer::IAnalyzerEngine *createEngine(const Analyzer::AnalyzerStartParameters &sp,
         ProjectExplorer::RunConfiguration *runConfiguration = 0);