I have a policy product that depends in one deprecated package we want to remove (collective.z3cform.widgets).
My idea was simply to uninstall the package but it's hidden (from products and profiles) and so I get an error when I use the usual:
I don't want to show it because I don't want anybody installing it by mistake after that.
is there any way I can tweak this feature programmatically? can I mark it as non-installable after uninstalling it?