Fix compilation with QT_NO_ACCESSIBILITY.

Task-number: QTBUG-27860

Change-Id: I561b0b0b1a098556f9de909241b448307a271985
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
(cherry picked from commit 8b29c7539d)
Reviewed-by: Kai Koehne <kai.koehne@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>

src/widgets/styles/qwindowsvistastyle.cpp

@@ -520,7 +520,11 @@ void QWindowsVistaStyle::drawPrimitive(PrimitiveElement element, const QStyleOpt
         }
         break;
     case PE_Frame: {
+#ifndef QT_NO_ACCESSIBILITY
         if (QStyleHelper::isInstanceOf(option->styleObject, QAccessible::EditableText)) {
+#else
+        if (false) {
+#endif
             painter->save();
             int stateId = ETS_NORMAL;
             if (!(state & State_Enabled))