Bug #18596 binlog schema event auto push causes mysqld errors

- move slock bitmask to separate hash list, object living only during query


sql/ha_ndbcluster.h:
  Bug #18596 binlog schema event auto push causes mysqld errors

sql/ha_ndbcluster.h

@@ -115,8 +115,6 @@ typedef struct st_ndbcluster_share {
   TABLE *table;
   NdbValue *ndb_value[2];
   MY_BITMAP *subscriber_bitmap;
-  MY_BITMAP slock_bitmap;
-  uint32 slock[256/32]; // 256 bits for lock status of table
 #endif
 } NDB_SHARE;