stale emacs lisp files left behind after upgrade

[mash]

Similar to https://bugs.launchpad.net/ubuntu/+source/use-package/+bug/2013157

elpa-ess, the new configuration of ess (emacs speaks statistics), would not load after upgrade to Ubuntu 23.04. Removing the directory /usr/share/emacs/site-lisp/elpa/ess-18.10.2/ (leaving only /usr/share/emacs/site-lisp/elpa/ess-18.10.3snapshot/ ) solved the problem

Description: Ubuntu 23.04
Release: 23.04

elpa-ess:
  Installed: 18.10.2+git20220915.f45542e-3
  Candidate: 18.10.2+git20220915.f45542e-3
  Version table:
 *** 18.10.2+git20220915.f45542e-3 500
        500 http://us.archive.ubuntu.com/ubuntu lunar/universe amd64 Packages
        500 http://us.archive.ubuntu.com/ubuntu lunar/universe i386 Packages
        100 /var/lib/dpkg/status

Expected: opening test.R in emacs should open in ESS[R] mode. M-X R in emacs should start R.
Instead: errors and warnings in emacs init file, no ESS[R] mode. M-X R in emacs did not start R.

Removing the directory /usr/share/emacs/site-lisp/elpa/ess-18.10.2/ resolved the problem