[dataimport] remove size constraint handling
We do not want to silently truncate data. If that is wanted, the
application-specific importer should handle that itself.
[v2: Keep the get_size_constraints function so applications don't have
to reimplement it if they need to keep the truncate behaviour]
usr/lib/python2*/*-packages/cubicweb/server/
usr/lib/python2*/*-packages/cubicweb/hooks/
usr/lib/python2*/*-packages/cubicweb/sobjects/
usr/lib/python2*/*-packages/cubicweb/schemas/
usr/share/cubicweb/migration/