WIP: Delete self._qwidget.cmap

Author: gselzer

src/ndv/views/_qt/_array_view.py

@@ -257,6 +257,7 @@ class QRGBView(QLutView):
     def __init__(self, channel: ChannelKey = None) -> None:
         super().__init__(channel)
         self._qwidget.cmap.setVisible(False)
+        self._qwidget.cmap.deleteLater()
         self._qwidget._layout.insertWidget(1, QLabel("RGB"))