Drop deprecated code in cubicweb.dataimport
We actually drop *most* of deprecated code in this subpackage. What's
left is the MetaGenerator class in (cubicweb/dataimport/stores.py) which
is tricky to remove as it's still internally used by cubicweb.
Changelog entry will come in a later changeset.
addressbook
basket
blog
book
calendar
comment
company
email
file
folder
i18ncontent
keyword
link
mailinglist
person
tag
timeseries
vcsfile