Comment 2 for bug 775480

Stop being difficult, I don't know why the file was missing. It doesn't matter. There simply is not a single reasonable excuse for a postrm script to fail when rm(1)-ing an already missing file. Needless hassle for the user, and your question is no good either.

Do note:

 1. dpkg --purge is a last-resort that people need if packages are screwed. File system damage, system admin accident, whatever.

 2. I don't care to discuss obvious and trivial fixes to real-world problems.