Remove a few more obsolete parts.

Change-Id: I3a001f01ab7fd8cf63452126037b98c1b01df80d
Reviewed-on: http://codereview.qt.nokia.com/1797
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Jonas Rabbe <jonas.rabbe@nokia.com>

examples/spectrum/app/mainwidget.cpp

@@ -149,12 +149,7 @@ void MainWidget::infoMessage(const QString &message, int timeoutMs)
 
 void MainWidget::errorMessage(const QString &heading, const QString &detail)
 {
-#ifdef Q_OS_SYMBIAN
-    const QString message = heading + "\n" + detail;
-    QMessageBox::warning(this, "", message, QMessageBox::Close);
-#else
     QMessageBox::warning(this, heading, detail, QMessageBox::Close);
-#endif
 }
 
 void MainWidget::timerEvent(QTimerEvent *event)