Fixes part of LP:705213 (Other part is to be pushed into 5.1)

storage/ndb/include/kernel/signaldata/FsOpenReq.hpp:
  Fixes compiler warnings
storage/ndb/include/ndbapi/NdbDictionary.hpp:
  Update to right typedef
storage/ndb/include/util/NdbSqlUtil.hpp:
  Remove not needed, conflicting code.
storage/ndb/src/kernel/blocks/dbtup/DbtupExecQuery.cpp:
  Added cast to get rid of not critical const.