OK, the problem is that files under /etc are considered configuration files and not automatically removed if they are absent from a later version of the package. I believe the standard way to remove them is from the postinst file, as in this patch.
OK, the problem is that files under /etc are considered configuration files and not automatically removed if they are absent from a later version of the package. I believe the standard way to remove them is from the postinst file, as in this patch.