Remove deprecated thumbnailer flag usage

DrawFrame is deprecated and no longer needed

plugins/webarchiver/thumbnailer/webarchivecreator.cpp

@@ -312,12 +312,6 @@ void WebArchiveCreator::slotRenderTimer()
 }
 
 
-ThumbCreator::Flags WebArchiveCreator::flags() const
-{
-    return (ThumbCreator::DrawFrame);
-}
-
-
 #ifdef THUMBNAIL_USE_WEBKIT
 
 // WebArchiveCreatorCookieJar

plugins/webarchiver/thumbnailer/webarchivecreator.h

@@ -28,7 +28,6 @@ public:
     ~WebArchiveCreator() override;
 
     bool create(const QString &path, int width, int height, QImage &img) override;
-    ThumbCreator::Flags flags() const override;
 
 private slots:
     void slotLoadFinished(bool ok);