fix scan take over


ndb/include/kernel/AttributeDescriptor.hpp:
  remove deprecated bits
ndb/include/kernel/signaldata/DictTabInfo.hpp:
  removed deprecated parameters
  moved never implemented to Unimplemented
ndb/src/common/debugger/signaldata/DictTabInfo.cpp:
  removed deprecated parameters
  moved never implemented to Unimplemented
ndb/src/kernel/blocks/dbdict/Dbdict.cpp:
  removed deprecated parameters
  moved never implemented to Unimplemented
ndb/src/kernel/vm/MetaData.hpp:
  removed deprecated parameters
  moved never implemented to Unimplemented
ndb/src/ndbapi/NdbDictionaryImpl.cpp:
  removed deprecated parameters
  moved never implemented to Unimplemented
ndb/src/ndbapi/NdbScanOperation.cpp:
  Do scan take over via distribution key code