remove package does not remove bash-completion file

[Jeff Fredrickson]

'apt remove virtualenvwrapper' leaves behind a bash-completion file at: /etc/bash_completion.d/virtualenvwrapper.

Since file gets sourced in upon login, it results in an error after the package has been removed:

bash: /usr/share/virtualenvwrapper/virtualenvwrapper_lazy.sh: No such file or directory

Steps to reproduce:

1. apt install virtualenvwrapper
2. Verify /etc/bash_completion.d/virtualenvwrapper was created
3. apt remove virtualenvwrapper
4. Verify /etc/bash_completion.d/virtualenvwrapper is still there
5. Start a login shell

Expected: No error in new shell
Actual: Error message about virtualenvwrapper_lazy.sh

Release: Ubuntu Artful Aardvark (development branch)

virtualenvwrapper:
  Installed: (none)
  Candidate: 4.3.1-2
  Version table:
     4.3.1-2 500
        500 http://us.archive.ubuntu.com/ubuntu artful/universe amd64 Packages
        500 http://us.archive.ubuntu.com/ubuntu artful/universe i386 Packages
        100 /var/lib/dpkg/status

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.