- let the receiving injector thread decide what to do
(recommit for 5.1.22 target)


sql/ha_ndbcluster.cc:
  BUG#30017 log-slave-updates incorrect behavior for cluster
  - let the receiving injector thread decide what to do
sql/ha_ndbcluster_binlog.cc:
  BUG#30017 log-slave-updates incorrect behavior for cluster
  - let the receiving injector thread decide what to do