To uninstall libmilter1.0.1 just follow these instructions.
sudo apt-get remove libmilter1.0.1
This will remove just the libmilter1.0.1 package itself.
sudo apt-get remove --auto-remove libmilter1.0.1
This will remove the libmilter1.0.1 package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for libmilter1.0.1 then this will work.
sudo apt-get purge libmilter1.0.1
Or similarly, like this libmilter1.0.1
sudo apt-get purge --auto-remove libmilter1.0.1
|Maintainer||Debian QA Group <email@example.com>|
|Description||Sendmail Mail Filter API (Milter)|