Rely on lazy instantiation of text editor actions

The actions are already lazily instantiated in
TextEditorActionHandler::setupActions(), so there should be no need to
call initializeActions() in all plugins on startup. Only the main text
editor plugin will still initialize its actions, to make sure the menu
items are there.

src/plugins/cppeditor/cppplugin.cpp

@@ -225,7 +225,6 @@ void CppPlugin::writeSettings()
 
 void CppPlugin::extensionsInitialized()
 {
-    m_actionHandler->initializeActions();
 }
 
 void CppPlugin::shutdown()

src/plugins/duieditor/duieditorplugin.cpp

@@ -131,7 +131,6 @@ bool DuiEditorPlugin::initialize(const QStringList & /*arguments*/, QString *err
 
 void DuiEditorPlugin::extensionsInitialized()
 {
-    m_actionHandler->initializeActions();
 }
 
 void DuiEditorPlugin::initializeEditor(DuiEditor::Internal::ScriptEditor *editor)

src/plugins/qt4projectmanager/profileeditorfactory.cpp

@@ -85,8 +85,3 @@ QStringList ProFileEditorFactory::mimeTypes() const
 {
     return m_mimeTypes;
 }
-
-void ProFileEditorFactory::initializeActions()
-{
-    m_actionHandler->initializeActions();
-}

src/plugins/qt4projectmanager/profileeditorfactory.h

@@ -63,8 +63,6 @@ public:
 
     inline Qt4Manager *qt4ProjectManager() const { return m_manager; }
 
-    void initializeActions();
-
 private:
     const QString m_kind;
     const QStringList m_mimeTypes;

src/plugins/qt4projectmanager/qt4projectmanagerplugin.cpp

@@ -185,7 +185,6 @@ bool Qt4ProjectManagerPlugin::initialize(const QStringList &arguments, QString *
 void Qt4ProjectManagerPlugin::extensionsInitialized()
 {
     m_qt4ProjectManager->init();
-    m_proFileEditorFactory->initializeActions();
 }
 
 void Qt4ProjectManagerPlugin::updateContextMenu(Project *project,

src/plugins/qtscripteditor/qtscripteditorplugin.cpp

@@ -128,7 +128,6 @@ bool QtScriptEditorPlugin::initialize(const QStringList & /*arguments*/, QString
 
 void QtScriptEditorPlugin::extensionsInitialized()
 {
-    m_actionHandler->initializeActions();
 }
 
 void QtScriptEditorPlugin::initializeEditor(QtScriptEditor::Internal::ScriptEditor *editor)