ICore: Remove unused methods

Some didn't even have implementations anymore

Change-Id: I376cb12006c9b3ec8f6b2a75c38275cd92d2bbf6
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>

src/plugins/coreplugin/icore.cpp

@@ -321,8 +321,6 @@ ICore::ICore(MainWindow *mainwindow)
         emit coreAboutToClose();
         QCoreApplication::exit(failedTests);
     });
-    connect(m_mainwindow, &MainWindow::newItemDialogRunningChanged,
-            this, &ICore::newItemDialogRunningChanged);
 }
 
 ICore::~ICore()

src/plugins/coreplugin/icore.h

@@ -152,8 +152,6 @@ public:
 
 private:
     static void validateNewItemDialogIsRunning();
-    static void newItemDialogOpened();
-    static void newItemDialogClosed();
 };
 
 } // namespace Core

src/plugins/coreplugin/mainwindow.cpp

@@ -1158,12 +1158,5 @@ void MainWindow::restoreWindowState()
     m_statusBarManager->restoreSettings();
 }
 
-void MainWindow::newItemDialogFinished()
-{
-    m_newAction->setEnabled(true);
-    // fire signal when the dialog is actually destroyed
-    QTimer::singleShot(0, this, &MainWindow::newItemDialogRunningChanged);
-}
-
 } // namespace Internal
 } // namespace Core

src/plugins/coreplugin/mainwindow.h

@@ -113,9 +113,6 @@ public:
 
     void saveSettings();
 
-signals:
-    void newItemDialogRunningChanged();
-
 public slots:
     void openFileWith();
     void exit();
@@ -142,7 +139,6 @@ private:
     void destroyVersionDialog();
     void openDroppedFiles(const QList<Utils::DropSupport::FileSpec> &files);
     void restoreWindowState();
-    void newItemDialogFinished();
 
     void updateContextObject(const QList<IContext *> &context);
     void updateContext();