QmlDesigner: Use new validation approach in event list

Many validation tests can now be skipped.

Task-number: QDS-7454
Change-Id: I6f346a9614552ccbebca3a812861a5edf912536d
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>

src/plugins/qmldesigner/components/eventlist/nodelistview.cpp

@@ -127,12 +127,7 @@ QString NodeListView::setNodeId(int internalId, const QString &id)
 
 bool supported(const ModelNode &node)
 {
-    if (!node.isValid())
-        return false;
-
     const NodeMetaInfo metaInfo = node.metaInfo();
-    if (!metaInfo.isValid())
-        return false;
 
     return metaInfo.hasProperty("eventIds");
 }