Merge lp:~stub/launchpad/librarian-last-accessed into lp:launchpad

[Stuart Bishop]

Remove references to LibraryFileAlias.last_accessed

= Summary =

Per Bug #1092332, LibraryFileAlias.last_accessed is a waste of space.

== Proposed fix ==

Stop all code from accessing it, dropping the column in a separate branch.

== Pre-implementation notes ==

== LOC Rationale ==

== Implementation details ==

== Tests ==

== Demo and Q/A ==

= Launchpad lint =

Checking for conflicts and issues in changed files.

Linting changed files:
  lib/lp/services/librarianserver/web.py
  lib/lp/services/librarian/model.py
  lib/lp/services/librarianserver/tests/test_web.py
  lib/lp/services/librarian/interfaces/__init__.py
  lib/lp/services/librarianserver/tests/test_gc.py
  database/schema/patch-2209-40-3.sql
  lib/lp/services/librarianserver/librariangc.py

./lib/lp/services/librarianserver/tests/test_web.py
      73: E225 missing whitespace around operator
     179: E225 missing whitespace around operator
     245: E225 missing whitespace around operator
     256: E225 missing whitespace around operator
     265: E225 missing whitespace around operator
     267: E225 missing whitespace around operator
     331: E225 missing whitespace around operator
     342: E225 missing whitespace around operator
     344: E225 missing whitespace around operator

[Stuart Bishop (stub)]

review: Approve