Remove an XXX.

Data structure seems appropriate as from a master point of view, a client
can initiate more than on transaction at time (as it's multithreaded) so
it is required to index current transaction by UUID first, then by tid.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@1729 71dcc9de-d417-0410-9af5-da40c76e7ee4

neo/master/transactions.py

@@ -182,7 +182,6 @@ class TransactionManager(object):
             tid = self._nextTID()
         txn = Transaction(node, tid)
         self._tid_dict[tid] = txn
-        # XXX: check the data structure
         self._node_dict.setdefault(node, {})[tid] = txn
         self.setLastTID(tid)
         return tid