Remove changeEvent(QEvent::LanguageChange) implementation

This was implemented only for a small set of widgets. It's unlikely that
we will ever have or even want a dynamic language selection, until then
this code is only dead freight.

Change-Id: I1bff4e1e89057786c0e5cb57225a508c5d390d9c
Reviewed-by: Eike Ziller <eike.ziller@digia.com>

src/libs/utils/projectintropage.cpp

@@ -138,18 +138,6 @@ void ProjectIntroPage::setDescription(const QString &description)
     d->m_ui.descriptionLabel->setText(description);
 }
 
-void ProjectIntroPage::changeEvent(QEvent *e)
-{
-    QWizardPage::changeEvent(e);
-    switch (e->type()) {
-    case QEvent::LanguageChange:
-        d->m_ui.retranslateUi(this);
-        break;
-    default:
-        break;
-    }
-}
-
 bool ProjectIntroPage::isComplete() const
 {
     return d->m_complete;