DblqhMain.cpp:   Use DBblock_REF instead of calcBLOCKBlockRef(getOwnNodeId()) as they are the same and the former is more efficient.
DblqhMain.cpp:
  Use DBblock_REF instead of calcBLOCKBlockRef(getOwnNodeId()) as they are the same and the former is more efficient.

Makes it easier to grep for senders of signals to specific blocks


ndb/src/kernel/blocks/dblqh/DblqhMain.cpp:
  Use DBblock_REF instead of calcBLOCKBlockRef(getOwnNodeId()) as they are the same and the former is more efficient.

flynn1973/mariadb-aix,natsys/mariadb_10.2,natsys/mariadb_10.2,natsys/mariadb_10.2,ollie314/server,davidl-zend/zenddbi,ollie314/server,ollie314/server,ollie314/server,ollie314/server,davidl-zend/zenddbi,ollie314/server,ollie314/server,ollie314/server,flynn1973/mariadb-aix,natsys/mariadb_10.2,slanterns/server,flynn1973/mariadb-aix,ollie314/server,flynn1973/mariadb-aix,ollie314/server,natsys/mariadb_10.2,davidl-zend/zenddbi,flynn1973/mariadb-aix,natsys/mariadb_10.2,flynn1973/mariadb-aix,davidl-zend/zenddbi,flynn1973/mariadb-aix,davidl-zend/zenddbi,natsys/mariadb_10.2,davidl-zend/zenddbi,ollie314/server,davidl-zend/zenddbi,davidl-zend/zenddbi,davidl-zend/zenddbi,natsys/mariadb_10.2,flynn1973/mariadb-aix,davidl-zend/zenddbi,flynn1973/mariadb-aix,natsys/mariadb_10.2,natsys/mariadb_10.2,flynn1973/mariadb-aix,davidl-zend/zenddbi,flynn1973/mariadb-aix,natsys/mariadb_10.2