Fixes for Bug#12429: Replication tests fail: "Slave_IO_Running" (?) differs related to MySQL 4.1
  and Bug#16920 rpl_deadlock_innodb fails in show slave status (reported for MySQL 5.1)
- Reactivation of testcase rpl_deadlock_innodb + updated file with expected results
- Removal of wrong entry within disabled.def


mysql-test/r/rpl_deadlock_innodb.result:
  Updated result
mysql-test/t/disabled.def:
  - Reactivation of testcase rpl_deadlock_innodb
  - Removal of entry for not existing testcase rpl_until