Fix -Wweak-vtables warning

Change-Id: Id9f5dfe965dbd2ba42ecb981c9c2a7b3bf4380b6
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/qml/qml/qqmlextensioninterface.h b/src/qml/qml/qqmlextensioninterface.h
index c2d20ef0a3..d2eb79c5c9 100644
--- a/src/qml/qml/qqmlextensioninterface.h
+++ b/src/qml/qml/qqmlextensioninterface.h
@@ -51,14 +51,14 @@ class QQmlEngine;
 class Q_QML_EXPORT QQmlTypesExtensionInterface
 {
 public:
-    virtual ~QQmlTypesExtensionInterface() {}
+    virtual ~QQmlTypesExtensionInterface() = default;
     virtual void registerTypes(const char *uri) = 0;
 };
 
 class Q_QML_EXPORT QQmlExtensionInterface : public QQmlTypesExtensionInterface
 {
 public:
-    ~QQmlExtensionInterface() override {}
+    ~QQmlExtensionInterface() override = default;
     virtual void initializeEngine(QQmlEngine *engine, const char *uri) = 0;
 };