[FIX] ir_translation: undo asymmetric change of set_ids/get_ids

Partial revert of commit 39d17c2580
of PR #4617, that broke translations by introducing a different
set of criterions for filtering translations in `_set_ids()` and
`_get_ids()`, adding the `module` column in `_set_ids`.

This meant `_get_ids` would see translations that `_set_ids`
would never update: the translation interface did not appear to
be working anymore as soon as a translation entry existed with
no `module` value.
This is likely for manual entries and for entries bootstrapped
by `translate_fields()`, as they do not belong to any module.

The situation described in PR #4617 probably requires an extra
fix in the translation import system instead.

openerp/addons/base/ir/ir_translation.py

@@ -286,7 +286,6 @@ class ir_translation(osv.osv):
     def _set_ids(self, cr, uid, name, tt, lang, ids, value, src=None):
         self._get_ids.clear_cache(self)
         self.__get_source.clear_cache(self)
-        original_module = self.pool[name.split(',')[0]]._original_module
         cr.execute('update ir_translation '
                   'set value=%s '
                   '  , src=%s '
@@ -294,10 +293,9 @@ class ir_translation(osv.osv):
                 'where lang=%s '
                     'and type=%s '
                     'and name=%s '
-                    'and module=%s '
                     'and res_id IN %s '
                 'returning res_id',
-                (value,src,'translated',lang,tt,name,original_module,tuple(ids),))
+                (value,src,'translated',lang,tt,name,tuple(ids),))
 
         existing_ids = [x[0] for x in cr.fetchall()]
 
@@ -307,7 +305,6 @@ class ir_translation(osv.osv):
                 'type':tt,
                 'name':name,
                 'res_id':id,
-                'module':original_module,
                 'value':value,
                 'src':src,
                 'state':'translated'