Along with improving the table_kind API, #117439 added a warning when
dropping non-tables.
This warning turns out to trigger on many models, in two major cases:
- the hook is called on abstract models, which don't have a table in
the first place, it probably should not be called for those but can
easily be skipped
- the hook is also called on `_auto = False` which don't have a table
anymore, this is because we use `DROP TABLE $table CASCADE`, which
implicitly drops any view (or table) depending on the table, it
might be possible to avoid this by ensuring we drop models in
reverse topological order *and* drop all of a module's views then
tables at once (by passing multiple names to `DROP`, but for now
just ignore the case where we're trying to drop an object which
can't be found
closesodoo/odoo#118194
Signed-off-by: Xavier Morel (xmo) <xmo@odoo.com>