analyzer: remove output pane

It's all dockwidgets now.

Change-Id: Ia47ca9331fdfbe12ca11f77c26afc35e73a2fae3
Reviewed-on: http://codereview.qt.nokia.com/776
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: hjk <qthjk@ovi.com>

src/plugins/valgrind/memchecktool.h

@@ -112,7 +112,6 @@ private slots:
 private:
     void ensureWidgets();
     bool canRunRemotely() const;
-    bool needsOutputPane() const { return true; }
     void initializeDockWidgets();
     void initialize() {}
     void extensionsInitialized();