[debian] Remove unused/redundant entries from debian/cubicweb-ctl.dirs * bash completion entry produces a lintian warning "package-installs-into-obsolete-dir etc/bash_completion.d/", and it does not install bash completion. * doc directory should be handled automatically.

addressbook
basket
blog
book
calendar
comment
company
email
file
folder
i18ncontent
keyword
link
mailinglist
person
tag
timeseries
vcsfile