Immediately delete any open LiveCapture windows when closing

qrenderdoc/Windows/MainWindow.cpp

@@ -1692,7 +1692,7 @@ void MainWindow::closeEvent(QCloseEvent *event)
   for(LiveCapture *live : m_LiveCaptures)
   {
     live->cleanItems();
-    live->close();
+    delete live;
   }
 
   SaveLayout(0);