QDateTimeEdit: don't throw off auto-indention

Reformulate #ifdef'ery involving {}s so as not to throw
off auto-indention of code editors due to unbalanced {}s.

Change-Id: I0f9858c78d0b6d923de75ca45c7d65ce3fa53e50
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>

src/widgets/widgets/qdatetimeedit.cpp

@@ -990,10 +990,9 @@ QSize QDateTimeEdit::sizeHint() const
         if (d->calendarPopupEnabled()) {
             QStyleOptionComboBox opt;
             d->cachedSizeHint = style()->sizeFromContents(QStyle::CT_ComboBox, &opt, hint, this);
-        } else {
-#else
-        {
+        } else
 #endif
+        {
             QSize extra(35, 6);
             QStyleOptionSpinBox opt;
             initStyleOption(&opt);