UpdateInfo: Fix unnecessary initialization delay

No need to start a one minute timer in delayedInitialize and then even
delay the next one by returning true from there.
Just start the timer in extensionsInitialized directly.

Change-Id: Ie36c8cef588603b1e9cb27a3a14db5d1dec1dae9
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/plugins/updateinfo/updateinfoplugin.cpp

@@ -179,16 +179,10 @@ bool UpdateInfoPlugin::isCheckForUpdatesRunning() const
     return d->m_checkUpdatesCommand;
 }
 
-bool UpdateInfoPlugin::delayedInitialize()
+void UpdateInfoPlugin::extensionsInitialized()
 {
     if (isAutomaticCheck())
         QTimer::singleShot(OneMinute, this, &UpdateInfoPlugin::startAutoCheckForUpdates);
-
-    return true;
-}
-
-void UpdateInfoPlugin::extensionsInitialized()
-{
 }
 
 bool UpdateInfoPlugin::initialize(const QStringList & /* arguments */, QString *errorMessage)

src/plugins/updateinfo/updateinfoplugin.h

@@ -52,7 +52,6 @@ public:
     UpdateInfoPlugin();
     virtual ~UpdateInfoPlugin();
 
-    bool delayedInitialize();
     void extensionsInitialized();
     bool initialize(const QStringList &arguments, QString *errorMessage);