Document tests: need to remove each document created in tests

There is commit commands inside document, to prevent from partially
writting data (eg. filestore and the db). Thus, the atomicity of the
transaction is broken.

bzr revid: p_christ@hol.gr-20100701175131-8v8xyosvz8nly0pi

addons/document/test/document_test2.yml

@@ -65,4 +65,6 @@
     !python {model: ir.attachment}: |
         ids = self.search(cr, uid, [('res_model', '=', 'res.country'), ('res_id', '=', ref("base.za"))])
         assert ids == [ ref("attach_3rd")], ids
+-
+    !delete {moel: ir.attachment, id: attach_3rd, search: }
 -