gtk:widget-remove-mnemonic-label (widget label)

widget -- a gtk:widget object
label -- a gtk:widget object that was previously set as a mnemonic label for widget

Removes a widget from the list of mnemonic labels for this widget. See the gtk:widget-list-mnemonic-labels function for a list of mnemonic labels for the widget. The widget must have previously been added to the list with the gtk:widget-add-mnemonic-label function.